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<button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.06007">arXiv:2107.06007</a> <span> [<a href="https://arxiv.org/pdf/2107.06007">pdf</a>, <a href="https://arxiv.org/format/2107.06007">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/17/02/P02015">10.1088/1748-0221/17/02/P02015 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The EXO-200 detector, part II: Auxiliary Systems </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ackerman%2C+N">N. Ackerman</a>, <a href="/search/physics?searchtype=author&query=Albert%2C+J">J. Albert</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Auty%2C+D+J">D. J. Auty</a>, <a href="/search/physics?searchtype=author&query=Badhrees%2C+I">I. Badhrees</a>, <a href="/search/physics?searchtype=author&query=Barbeau%2C+P+S">P. S. Barbeau</a>, <a href="/search/physics?searchtype=author&query=Bartoszek%2C+L">L. Bartoszek</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">E. Baussan</a>, <a href="/search/physics?searchtype=author&query=Belov%2C+V">V. Belov</a>, <a href="/search/physics?searchtype=author&query=Benitez-Medina%2C+C">C. Benitez-Medina</a>, <a href="/search/physics?searchtype=author&query=Bhatta%2C+T">T. Bhatta</a>, <a href="/search/physics?searchtype=author&query=Breidenbach%2C+M">M. Breidenbach</a>, <a href="/search/physics?searchtype=author&query=Brunner%2C+T">T. Brunner</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/physics?searchtype=author&query=Chambers%2C+C">C. Chambers</a>, <a href="/search/physics?searchtype=author&query=Cleveland%2C+B">B. Cleveland</a>, <a href="/search/physics?searchtype=author&query=Conley%2C+R">R. Conley</a>, <a href="/search/physics?searchtype=author&query=Cook%2C+S">S. Cook</a>, <a href="/search/physics?searchtype=author&query=Coon%2C+M">M. Coon</a>, <a href="/search/physics?searchtype=author&query=Craddock%2C+W">W. Craddock</a>, <a href="/search/physics?searchtype=author&query=Craycraft%2C+A">A. Craycraft</a>, <a href="/search/physics?searchtype=author&query=Cree%2C+W">W. Cree</a>, <a href="/search/physics?searchtype=author&query=Daniels%2C+T">T. Daniels</a>, <a href="/search/physics?searchtype=author&query=Darroch%2C+L">L. Darroch</a> , et al. (135 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2107.06007v3-abstract-short" style="display: inline;"> The EXO-200 experiment searched for neutrinoless double-beta decay of $^{136}$Xe with a single-phase liquid xenon detector. It used an active mass of 110 kg of 80.6%-enriched liquid xenon in an ultra-low background time projection chamber with ionization and scintillation detection and readout. This paper describes the design and performance of the various support systems necessary for detector op… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.06007v3-abstract-full').style.display = 'inline'; document.getElementById('2107.06007v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.06007v3-abstract-full" style="display: none;"> The EXO-200 experiment searched for neutrinoless double-beta decay of $^{136}$Xe with a single-phase liquid xenon detector. It used an active mass of 110 kg of 80.6%-enriched liquid xenon in an ultra-low background time projection chamber with ionization and scintillation detection and readout. This paper describes the design and performance of the various support systems necessary for detector operation, including cryogenics, xenon handling, and controls. Novel features of the system were driven by the need to protect the thin-walled detector chamber containing the liquid xenon, to achieve high chemical purity of the Xe, and to maintain thermal uniformity across the detector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.06007v3-abstract-full').style.display = 'none'; document.getElementById('2107.06007v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Manuscript updated in response to JINST reviewer comments</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2010.08370">arXiv:2010.08370</a> <span> [<a href="https://arxiv.org/pdf/2010.08370">pdf</a>, <a href="https://arxiv.org/format/2010.08370">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/16/03/P03007">10.1088/1748-0221/16/03/P03007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of scintillation light collection, production and propagation in a 4 tonne dual-phase LArTPC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Aimard%2C+B">B. Aimard</a>, <a href="/search/physics?searchtype=author&query=Aizawa%2C+L">L. Aizawa</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Aushev%2C+V">V. Aushev</a>, <a href="/search/physics?searchtype=author&query=Autiero%2C+D">D. Autiero</a>, <a href="/search/physics?searchtype=author&query=Balaceanu%2C+A">A. Balaceanu</a>, <a href="/search/physics?searchtype=author&query=Balik%2C+G">G. Balik</a>, <a href="/search/physics?searchtype=author&query=Balleyguier%2C+L">L. Balleyguier</a>, <a href="/search/physics?searchtype=author&query=Bechetoille%2C+E">E. Bechetoille</a>, <a href="/search/physics?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/physics?searchtype=author&query=Blebea-Apostu%2C+A+M">A. M. Blebea-Apostu</a>, <a href="/search/physics?searchtype=author&query=Bolognesi%2C+S">S. Bolognesi</a>, <a href="/search/physics?searchtype=author&query=Bordoni%2C+S">S. Bordoni</a>, <a href="/search/physics?searchtype=author&query=Bourgeois%2C+N">N. Bourgeois</a>, <a href="/search/physics?searchtype=author&query=Bourguille%2C+B">B. Bourguille</a>, <a href="/search/physics?searchtype=author&query=Bremer%2C+J">J. Bremer</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+G">G. Brown</a>, <a href="/search/physics?searchtype=author&query=Brunetti%2C+G">G. Brunetti</a>, <a href="/search/physics?searchtype=author&query=Brunetti%2C+L">L. Brunetti</a>, <a href="/search/physics?searchtype=author&query=Caiulo%2C+D">D. Caiulo</a>, <a href="/search/physics?searchtype=author&query=Calin%2C+M">M. Calin</a>, <a href="/search/physics?searchtype=author&query=Calvo%2C+E">E. Calvo</a>, <a href="/search/physics?searchtype=author&query=Campanelli%2C+M">M. Campanelli</a> , et al. (138 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2010.08370v3-abstract-short" style="display: inline;"> The $3 \times 1 \times 1$ m$^3$ demonstrator is a dual phase liquid argon time projection chamber that has recorded cosmic rays events in 2017 at CERN. The light signal in these detectors is crucial to provide precise timing capabilities. The performances of the photon detection system, composed of five PMTs, are discussed. The collected scintillation and electroluminescence light created by passi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.08370v3-abstract-full').style.display = 'inline'; document.getElementById('2010.08370v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2010.08370v3-abstract-full" style="display: none;"> The $3 \times 1 \times 1$ m$^3$ demonstrator is a dual phase liquid argon time projection chamber that has recorded cosmic rays events in 2017 at CERN. The light signal in these detectors is crucial to provide precise timing capabilities. The performances of the photon detection system, composed of five PMTs, are discussed. The collected scintillation and electroluminescence light created by passing particles has been studied in various detector conditions. In particular, the scintillation light production and propagation processes have been analyzed and compared to simulations, improving the understanding of some liquid argon properties. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.08370v3-abstract-full').style.display = 'none'; document.getElementById('2010.08370v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 December, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 October, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">30 pages, 26 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1908.10956">arXiv:1908.10956</a> <span> [<a href="https://arxiv.org/pdf/1908.10956">pdf</a>, <a href="https://arxiv.org/format/1908.10956">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> A New Concept for Kilotonne Scale Liquid Argon Time Projection Chambers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Berner%2C+R">R. Berner</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Ereditato%2C+A">A. Ereditato</a>, <a href="/search/physics?searchtype=author&query=Goeldi%2C+D">D. Goeldi</a>, <a href="/search/physics?searchtype=author&query=Koller%2C+P+P">P. P. Koller</a>, <a href="/search/physics?searchtype=author&query=Kreslo%2C+I">I. Kreslo</a>, <a href="/search/physics?searchtype=author&query=Lorca%2C+D">D. Lorca</a>, <a href="/search/physics?searchtype=author&query=Mettler%2C+T">T. Mettler</a>, <a href="/search/physics?searchtype=author&query=Piastra%2C+F">F. Piastra</a>, <a href="/search/physics?searchtype=author&query=Sinclair%2C+J+R">J. R. Sinclair</a>, <a href="/search/physics?searchtype=author&query=Weber%2C+M">M. Weber</a>, <a href="/search/physics?searchtype=author&query=Wilkinson%2C+C">C. Wilkinson</a>, <a href="/search/physics?searchtype=author&query=Convery%2C+M">M. Convery</a>, <a href="/search/physics?searchtype=author&query=Domine%2C+L">L. Domine</a>, <a href="/search/physics?searchtype=author&query=Drielsma%2C+F">F. Drielsma</a>, <a href="/search/physics?searchtype=author&query=Itay%2C+R">R. Itay</a>, <a href="/search/physics?searchtype=author&query=Koh%2C+D+H">D. H. Koh</a>, <a href="/search/physics?searchtype=author&query=Tanaka%2C+H+A">H. A. Tanaka</a>, <a href="/search/physics?searchtype=author&query=Terao%2C+K">K. Terao</a>, <a href="/search/physics?searchtype=author&query=Tsang%2C+P">P. Tsang</a>, <a href="/search/physics?searchtype=author&query=Usher%2C+T">T. Usher</a>, <a href="/search/physics?searchtype=author&query=Dwyer%2C+D+A">D. A. Dwyer</a>, <a href="/search/physics?searchtype=author&query=Kohn%2C+S">S. Kohn</a>, <a href="/search/physics?searchtype=author&query=Madigan%2C+P">P. Madigan</a> , et al. (3 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1908.10956v3-abstract-short" style="display: inline;"> We develop a novel approach for a Time Projection Chamber (TPC) concept suitable for deployment in kilotonne scale detectors, with a charge-readout system free from reconstruction ambiguities, and a robust TPC design that reduces high-voltage risks while increasing the coverage of the light collection system. This novel concept could be deployed as a Far Detector module in the Deep Underground Neu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1908.10956v3-abstract-full').style.display = 'inline'; document.getElementById('1908.10956v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1908.10956v3-abstract-full" style="display: none;"> We develop a novel approach for a Time Projection Chamber (TPC) concept suitable for deployment in kilotonne scale detectors, with a charge-readout system free from reconstruction ambiguities, and a robust TPC design that reduces high-voltage risks while increasing the coverage of the light collection system. This novel concept could be deployed as a Far Detector module in the Deep Underground Neutrino Experiment (DUNE) neutrino-oscillation experiment. For the charge-readout system, we use the charge-collection pixels and associated application-specific integrated circuits currently being developed for the liquid argon (LAr) component of the DUNE Near Detector design, ArgonCube. In addition, we divide the TPC into a number or shorter drift volumes, reducing the total voltage used to drift the ionisation electrons, and minimising the stored energy per TPC. Segmenting the TPC also contains scintillation light, allowing for precise trigger localisation and a more expansive light-readout system. Furthermore, the design opens the possibility of replacing or upgrading components. These augmentations could substantially improve reliability and sensitivity, particularly for low energy signals, in comparison to a traditional monolithic LArTPCs with projective charge-readout. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1908.10956v3-abstract-full').style.display = 'none'; document.getElementById('1908.10956v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 November, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 August, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 5 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1901.02862">arXiv:1901.02862</a> <span> [<a href="https://arxiv.org/pdf/1901.02862">pdf</a>, <a href="https://arxiv.org/format/1901.02862">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/14/04/P04004">10.1088/1748-0221/14/04/P04004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Design and construction of the MicroBooNE Cosmic Ray Tagger system </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=MicroBooNE+collaboration"> MicroBooNE collaboration</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=An%2C+R">R. An</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Ashkenazi%2C+A">A. Ashkenazi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Balasubramanian%2C+S">S. Balasubramanian</a>, <a href="/search/physics?searchtype=author&query=Baller%2C+B">B. Baller</a>, <a href="/search/physics?searchtype=author&query=Barnes%2C+C">C. Barnes</a>, <a href="/search/physics?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+F">F. Bay</a>, <a href="/search/physics?searchtype=author&query=Bhat%2C+A">A. Bhat</a>, <a href="/search/physics?searchtype=author&query=Bhattacharya%2C+K">K. Bhattacharya</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/physics?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+L">L. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Caratelli%2C+D">D. Caratelli</a>, <a href="/search/physics?searchtype=author&query=Terrazas%2C+I+C">I. Caro Terrazas</a>, <a href="/search/physics?searchtype=author&query=Carr%2C+R">R. Carr</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+R+C">R. Castillo Fernandez</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a> , et al. (149 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1901.02862v2-abstract-short" style="display: inline;"> The MicroBooNE detector utilizes a liquid argon time projection chamber (LArTPC) with an 85 t active mass to study neutrino interactions along the Booster Neutrino Beam (BNB) at Fermilab. With a deployment location near ground level, the detector records many cosmic muon tracks in each beam-related detector trigger that can be misidentified as signals of interest. To reduce these cosmogenic backgr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1901.02862v2-abstract-full').style.display = 'inline'; document.getElementById('1901.02862v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1901.02862v2-abstract-full" style="display: none;"> The MicroBooNE detector utilizes a liquid argon time projection chamber (LArTPC) with an 85 t active mass to study neutrino interactions along the Booster Neutrino Beam (BNB) at Fermilab. With a deployment location near ground level, the detector records many cosmic muon tracks in each beam-related detector trigger that can be misidentified as signals of interest. To reduce these cosmogenic backgrounds, we have designed and constructed a TPC-external Cosmic Ray Tagger (CRT). This sub-system was developed by the Laboratory for High Energy Physics (LHEP), Albert Einstein center for fundamental physics, University of Bern. The system utilizes plastic scintillation modules to provide precise time and position information for TPC-traversing particles. Successful matching of TPC tracks and CRT data will allow us to reduce cosmogenic background and better characterize the light collection system and LArTPC data using cosmic muons. In this paper we describe the design and installation of the MicroBooNE CRT system and provide an overview of a series of tests done to verify the proper operation of the system and its components during installation, commissioning, and physics data-taking. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1901.02862v2-abstract-full').style.display = 'none'; document.getElementById('1901.02862v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 March, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 January, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2019. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1812.05679">arXiv:1812.05679</a> <span> [<a href="https://arxiv.org/pdf/1812.05679">pdf</a>, <a href="https://arxiv.org/format/1812.05679">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> </div> </div> <p class="title is-5 mathjax"> Rejecting cosmic background for exclusive neutrino interaction studies with Liquid Argon TPCs; a case study with the MicroBooNE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=MicroBooNE+collaboration"> MicroBooNE collaboration</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=An%2C+R">R. An</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Ashkenazi%2C+A">A. Ashkenazi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Balasubramanian%2C+S">S. Balasubramanian</a>, <a href="/search/physics?searchtype=author&query=Baller%2C+B">B. Baller</a>, <a href="/search/physics?searchtype=author&query=Barnes%2C+C">C. Barnes</a>, <a href="/search/physics?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+F">F. Bay</a>, <a href="/search/physics?searchtype=author&query=Bhat%2C+A">A. Bhat</a>, <a href="/search/physics?searchtype=author&query=Bhattacharya%2C+K">K. Bhattacharya</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/physics?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+L">L. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Caratelli%2C+D">D. Caratelli</a>, <a href="/search/physics?searchtype=author&query=Terrazas%2C+I+C">I. Caro Terrazas</a>, <a href="/search/physics?searchtype=author&query=Carr%2C+R">R. Carr</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+R+C">R. Castillo Fernandez</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a> , et al. (150 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1812.05679v2-abstract-short" style="display: inline;"> Cosmic ray (CR) interactions can be a challenging source of background for neutrino oscillation and cross-section measurements in surface detectors. We present methods for CR rejection in measurements of charged-current quasielastic-like (CCQE-like) neutrino interactions, with a muon and a proton in the final state, measured using liquid argon time projection chambers (LArTPCs). Using a sample of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.05679v2-abstract-full').style.display = 'inline'; document.getElementById('1812.05679v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1812.05679v2-abstract-full" style="display: none;"> Cosmic ray (CR) interactions can be a challenging source of background for neutrino oscillation and cross-section measurements in surface detectors. We present methods for CR rejection in measurements of charged-current quasielastic-like (CCQE-like) neutrino interactions, with a muon and a proton in the final state, measured using liquid argon time projection chambers (LArTPCs). Using a sample of cosmic data collected with the MicroBooNE detector, mixed with simulated neutrino scattering events, a set of event selection criteria is developed that produces an event sample with minimal contribution from CR background. Depending on the selection criteria used a purity between 50% and 80% can be achieved with a signal selection efficiency between 50% and 25%, with higher purity coming at the expense of lower efficiency. While using a specific dataset from the MicroBooNE detector and selection criteria values optimized for CCQE-like events, the concepts presented here are generic and can be adapted for various studies of exclusive 谓渭 interactions in LArTPCs. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.05679v2-abstract-full').style.display = 'none'; document.getElementById('1812.05679v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 January, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 December, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 10 figures, 1 table</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-18-677-E </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1811.02700">arXiv:1811.02700</a> <span> [<a href="https://arxiv.org/pdf/1811.02700">pdf</a>, <a href="https://arxiv.org/format/1811.02700">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.99.091102">10.1103/PhysRevD.99.091102 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First Measurement of $谓_渭$ Charged-Current $蟺^{0}$ Production on Argon with a LArTPC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=MicroBooNE+collaboration"> MicroBooNE collaboration</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=An%2C+R">R. An</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Ashkenazi%2C+A">A. Ashkenazi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Balasubramanian%2C+S">S. Balasubramanian</a>, <a href="/search/physics?searchtype=author&query=Baller%2C+B">B. Baller</a>, <a href="/search/physics?searchtype=author&query=Barnes%2C+C">C. Barnes</a>, <a href="/search/physics?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+F">F. Bay</a>, <a href="/search/physics?searchtype=author&query=Bhat%2C+A">A. Bhat</a>, <a href="/search/physics?searchtype=author&query=Bhattacharya%2C+K">K. Bhattacharya</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/physics?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+L">L. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Caratelli%2C+D">D. Caratelli</a>, <a href="/search/physics?searchtype=author&query=Terrazas%2C+I+C">I. Caro Terrazas</a>, <a href="/search/physics?searchtype=author&query=Carr%2C+R">R. Carr</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+R+C">R. Castillo Fernandez</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a> , et al. (150 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1811.02700v1-abstract-short" style="display: inline;"> We report the first measurement of the flux-integrated cross section of $谓_渭$ charged-current single $蟺^{0}$ production on argon. This measurement is performed with the MicroBooNE detector, an 85 ton active mass liquid argon time projection chamber exposed to the Booster Neutrino Beam at Fermilab. This result on argon is compared to past measurements on lighter nuclei to investigate the scaling as… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1811.02700v1-abstract-full').style.display = 'inline'; document.getElementById('1811.02700v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1811.02700v1-abstract-full" style="display: none;"> We report the first measurement of the flux-integrated cross section of $谓_渭$ charged-current single $蟺^{0}$ production on argon. This measurement is performed with the MicroBooNE detector, an 85 ton active mass liquid argon time projection chamber exposed to the Booster Neutrino Beam at Fermilab. This result on argon is compared to past measurements on lighter nuclei to investigate the scaling assumptions used in models of the production and transport of pions in neutrino-nucleus scattering. The techniques used are an important demonstration of the successful reconstruction and analysis of neutrino interactions producing electromagnetic final states using a liquid argon time projection chamber operating at the earth's surface. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1811.02700v1-abstract-full').style.display = 'none'; document.getElementById('1811.02700v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 November, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 99, 091102 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1808.07269">arXiv:1808.07269</a> <span> [<a href="https://arxiv.org/pdf/1808.07269">pdf</a>, <a href="https://arxiv.org/format/1808.07269">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computer Vision and Pattern Recognition">cs.CV</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.99.092001">10.1103/PhysRevD.99.092001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A Deep Neural Network for Pixel-Level Electromagnetic Particle Identification in the MicroBooNE Liquid Argon Time Projection Chamber </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=MicroBooNE+collaboration"> MicroBooNE collaboration</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=An%2C+R">R. An</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Ashkenazi%2C+A">A. Ashkenazi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Balasubramanian%2C+S">S. Balasubramanian</a>, <a href="/search/physics?searchtype=author&query=Baller%2C+B">B. Baller</a>, <a href="/search/physics?searchtype=author&query=Barnes%2C+C">C. Barnes</a>, <a href="/search/physics?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+F">F. Bay</a>, <a href="/search/physics?searchtype=author&query=Bhat%2C+A">A. Bhat</a>, <a href="/search/physics?searchtype=author&query=Bhattacharya%2C+K">K. Bhattacharya</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/physics?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+L">L. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Caratelli%2C+D">D. Caratelli</a>, <a href="/search/physics?searchtype=author&query=Terrazas%2C+I+C">I. Caro Terrazas</a>, <a href="/search/physics?searchtype=author&query=Carr%2C+R">R. Carr</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+R+C">R. Castillo Fernandez</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a> , et al. (148 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1808.07269v1-abstract-short" style="display: inline;"> We have developed a convolutional neural network (CNN) that can make a pixel-level prediction of objects in image data recorded by a liquid argon time projection chamber (LArTPC) for the first time. We describe the network design, training techniques, and software tools developed to train this network. The goal of this work is to develop a complete deep neural network based data reconstruction cha… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.07269v1-abstract-full').style.display = 'inline'; document.getElementById('1808.07269v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1808.07269v1-abstract-full" style="display: none;"> We have developed a convolutional neural network (CNN) that can make a pixel-level prediction of objects in image data recorded by a liquid argon time projection chamber (LArTPC) for the first time. We describe the network design, training techniques, and software tools developed to train this network. The goal of this work is to develop a complete deep neural network based data reconstruction chain for the MicroBooNE detector. We show the first demonstration of a network's validity on real LArTPC data using MicroBooNE collection plane images. The demonstration is performed for stopping muon and a $谓_渭$ charged current neutral pion data samples. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.07269v1-abstract-full').style.display = 'none'; document.getElementById('1808.07269v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 99, 092001 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1807.10340">arXiv:1807.10340</a> <span> [<a href="https://arxiv.org/pdf/1807.10340">pdf</a>, <a href="https://arxiv.org/format/1807.10340">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> The DUNE Far Detector Interim Design Report, Volume 3: Dual-Phase Module </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adamson%2C+P">P. Adamson</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Albright%2C+C+H">C. H. Albright</a>, <a href="/search/physics?searchtype=author&query=Soplin%2C+L+A">L. Aliaga Soplin</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+K">K. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+R+A">R. A. Andrews</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Antonello%2C+M">M. Antonello</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a> , et al. (1076 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1807.10340v1-abstract-short" style="display: inline;"> The DUNE IDR describes the proposed physics program and technical designs of the DUNE far detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.10340v1-abstract-full').style.display = 'inline'; document.getElementById('1807.10340v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1807.10340v1-abstract-full" style="display: none;"> The DUNE IDR describes the proposed physics program and technical designs of the DUNE far detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable the DUNE experiment to make the ground-breaking discoveries that will help to answer fundamental physics questions. Volume 3 describes the dual-phase module's subsystems, the technical coordination required for its design, construction, installation, and integration, and its organizational structure. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.10340v1-abstract-full').style.display = 'none'; document.getElementById('1807.10340v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">280 pages, 109 figures. arXiv admin note: text overlap with arXiv:1807.10327</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Fermilab-Design-2018-04 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1807.10334">arXiv:1807.10334</a> <span> [<a href="https://arxiv.org/pdf/1807.10334">pdf</a>, <a href="https://arxiv.org/format/1807.10334">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> The DUNE Far Detector Interim Design Report Volume 1: Physics, Technology and Strategies </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adamson%2C+P">P. Adamson</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Albright%2C+C+H">C. H. Albright</a>, <a href="/search/physics?searchtype=author&query=Soplin%2C+L+A">L. Aliaga Soplin</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+K">K. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+R+A">R. A. Andrews</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Antonello%2C+M">M. Antonello</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a> , et al. (1076 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1807.10334v1-abstract-short" style="display: inline;"> The DUNE IDR describes the proposed physics program and technical designs of the DUNE Far Detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.10334v1-abstract-full').style.display = 'inline'; document.getElementById('1807.10334v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1807.10334v1-abstract-full" style="display: none;"> The DUNE IDR describes the proposed physics program and technical designs of the DUNE Far Detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable the DUNE experiment to make the ground-breaking discoveries that will help to answer fundamental physics questions. Volume 1 contains an executive summary that describes the general aims of this document. The remainder of this first volume provides a more detailed description of the DUNE physics program that drives the choice of detector technologies. It also includes concise outlines of two overarching systems that have not yet evolved to consortium structures: computing and calibration. Volumes 2 and 3 of this IDR describe, for the single-phase and dual-phase technologies, respectively, each detector module's subsystems, the technical coordination required for its design, construction, installation, and integration, and its organizational structure. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.10334v1-abstract-full').style.display = 'none'; document.getElementById('1807.10334v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">83 pages, 11 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Fermilab-Design-2018-02 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1807.10327">arXiv:1807.10327</a> <span> [<a href="https://arxiv.org/pdf/1807.10327">pdf</a>, <a href="https://arxiv.org/format/1807.10327">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> The DUNE Far Detector Interim Design Report, Volume 2: Single-Phase Module </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adamson%2C+P">P. Adamson</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Albright%2C+C+H">C. H. Albright</a>, <a href="/search/physics?searchtype=author&query=Soplin%2C+L+A">L. Aliaga Soplin</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+K">K. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+R+A">R. A. Andrews</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Antonello%2C+M">M. Antonello</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a> , et al. (1076 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1807.10327v1-abstract-short" style="display: inline;"> The DUNE IDR describes the proposed physics program and technical designs of the DUNE far detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.10327v1-abstract-full').style.display = 'inline'; document.getElementById('1807.10327v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1807.10327v1-abstract-full" style="display: none;"> The DUNE IDR describes the proposed physics program and technical designs of the DUNE far detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable the DUNE experiment to make the ground-breaking discoveries that will help to answer fundamental physics questions. Volume 2 describes the single-phase module's subsystems, the technical coordination required for its design, construction, installation, and integration, and its organizational structure. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.10327v1-abstract-full').style.display = 'none'; document.getElementById('1807.10327v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">324 pages, 130 figures. arXiv admin note: text overlap with arXiv:1807.10340</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Fermilab-Design-2018-03 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1806.03317">arXiv:1806.03317</a> <span> [<a href="https://arxiv.org/pdf/1806.03317">pdf</a>, <a href="https://arxiv.org/format/1806.03317">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/13/11/P11003">10.1088/1748-0221/13/11/P11003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A 4 tonne demonstrator for large-scale dual-phase liquid argon time projection chambers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Aimard%2C+B">B. Aimard</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">Ch. Alt</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Aushev%2C+V">V. Aushev</a>, <a href="/search/physics?searchtype=author&query=Autiero%2C+D">D. Autiero</a>, <a href="/search/physics?searchtype=author&query=Badoi%2C+M+M">M. M. Badoi</a>, <a href="/search/physics?searchtype=author&query=Balaceanu%2C+A">A. Balaceanu</a>, <a href="/search/physics?searchtype=author&query=Balik%2C+G">G. Balik</a>, <a href="/search/physics?searchtype=author&query=Balleyguier%2C+L">L. Balleyguier</a>, <a href="/search/physics?searchtype=author&query=Bechetoille%2C+E">E. Bechetoille</a>, <a href="/search/physics?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/physics?searchtype=author&query=Blebea-Apostu%2C+A+M">A. M. Blebea-Apostu</a>, <a href="/search/physics?searchtype=author&query=Bolognesi%2C+S">S. Bolognesi</a>, <a href="/search/physics?searchtype=author&query=Bordoni%2C+S">S. Bordoni</a>, <a href="/search/physics?searchtype=author&query=Bourgeois%2C+N">N. Bourgeois</a>, <a href="/search/physics?searchtype=author&query=Bourguille%2C+B">B. Bourguille</a>, <a href="/search/physics?searchtype=author&query=Bremer%2C+J">J. Bremer</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+G">G. Brown</a>, <a href="/search/physics?searchtype=author&query=Brunetti%2C+G">G. Brunetti</a>, <a href="/search/physics?searchtype=author&query=Brunetti%2C+L">L. Brunetti</a>, <a href="/search/physics?searchtype=author&query=Caiulo%2C+D">D. Caiulo</a>, <a href="/search/physics?searchtype=author&query=Calin%2C+M">M. Calin</a>, <a href="/search/physics?searchtype=author&query=Calvo%2C+E">E. Calvo</a>, <a href="/search/physics?searchtype=author&query=Campanelli%2C+M">M. Campanelli</a> , et al. (147 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1806.03317v3-abstract-short" style="display: inline;"> A 10 kilo-tonne dual-phase liquid argon TPC is one of the detector options considered for the Deep Underground Neutrino Experiment (DUNE). The detector technology relies on amplification of the ionisation charge in ultra-pure argon vapour and oers several advantages compared to the traditional single-phase liquid argon TPCs. A 4.2 tonne dual-phase liquid argon TPC prototype, the largest of its kin… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.03317v3-abstract-full').style.display = 'inline'; document.getElementById('1806.03317v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1806.03317v3-abstract-full" style="display: none;"> A 10 kilo-tonne dual-phase liquid argon TPC is one of the detector options considered for the Deep Underground Neutrino Experiment (DUNE). The detector technology relies on amplification of the ionisation charge in ultra-pure argon vapour and oers several advantages compared to the traditional single-phase liquid argon TPCs. A 4.2 tonne dual-phase liquid argon TPC prototype, the largest of its kind, with an active volume of 3x1x1 $m^3$ has been constructed and operated at CERN. In this paper we describe in detail the experimental setup and detector components as well as report on the operation experience. We also present the first results on the achieved charge amplification, prompt scintillation and electroluminescence detection, and purity of the liquid argon from analyses of a collected sample of cosmic ray muons. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.03317v3-abstract-full').style.display = 'none'; document.getElementById('1806.03317v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 October, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2018. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1805.06887">arXiv:1805.06887</a> <span> [<a href="https://arxiv.org/pdf/1805.06887">pdf</a>, <a href="https://arxiv.org/format/1805.06887">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-019-6742-3">10.1140/epjc/s10052-019-6742-3 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Comparison of 谓渭-Ar multiplicity distributions observed by MicroBooNE to GENIE model predictions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=An%2C+R">R. An</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Balasubramanian%2C+S">S. Balasubramanian</a>, <a href="/search/physics?searchtype=author&query=Baller%2C+B">B. Baller</a>, <a href="/search/physics?searchtype=author&query=Barnes%2C+C">C. Barnes</a>, <a href="/search/physics?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+F">F. Bay</a>, <a href="/search/physics?searchtype=author&query=Bhat%2C+A">A. Bhat</a>, <a href="/search/physics?searchtype=author&query=Bhattacharya%2C+K">K. Bhattacharya</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/physics?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+L">L. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Caratelli%2C+D">D. Caratelli</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+R+C">R. Castillo Fernandez</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a>, <a href="/search/physics?searchtype=author&query=Cerati%2C+G">G. Cerati</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H">H. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Church%2C+E">E. Church</a>, <a href="/search/physics?searchtype=author&query=Cianci%2C+D">D. Cianci</a> , et al. (140 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1805.06887v3-abstract-short" style="display: inline;"> We measure a large set of observables in inclusive charged current muon neutrino scattering on argon with the MicroBooNE liquid argon time projection chamber operating at Fermilab. We evaluate three neutrino interaction models based on the widely used GENIE event generator using these observables. The measurement uses a data set consisting of neutrino interactions with a final state muon candidate… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.06887v3-abstract-full').style.display = 'inline'; document.getElementById('1805.06887v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1805.06887v3-abstract-full" style="display: none;"> We measure a large set of observables in inclusive charged current muon neutrino scattering on argon with the MicroBooNE liquid argon time projection chamber operating at Fermilab. We evaluate three neutrino interaction models based on the widely used GENIE event generator using these observables. The measurement uses a data set consisting of neutrino interactions with a final state muon candidate fully contained within the MicroBooNE detector. These data were collected in 2016 with the Fermilab Booster Neutrino Beam, which has an average neutrino energy of 800 MeV, using an exposure corresponding to 5E19 protons-on-target. The analysis employs fully automatic event selection and charged particle track reconstruction and uses a data-driven technique to separate neutrino interactions from cosmic ray background events. We find that GENIE models consistently describe the shapes of a large number of kinematic distributions for fixed observed multiplicity. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.06887v3-abstract-full').style.display = 'none'; document.getElementById('1805.06887v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 March, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 May, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">31 pages, 39 figures, 10 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C (2019) 79:248 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1804.02583">arXiv:1804.02583</a> <span> [<a href="https://arxiv.org/pdf/1804.02583">pdf</a>, <a href="https://arxiv.org/format/1804.02583">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/13/07/P07007">10.1088/1748-0221/13/07/P07007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Ionization Electron Signal Processing in Single Phase LArTPCs II. Data/Simulation Comparison and Performance in MicroBooNE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=MicroBooNE+collaboration"> MicroBooNE collaboration</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=An%2C+R">R. An</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Balasubramanian%2C+S">S. Balasubramanian</a>, <a href="/search/physics?searchtype=author&query=Baller%2C+B">B. Baller</a>, <a href="/search/physics?searchtype=author&query=Barnes%2C+C">C. Barnes</a>, <a href="/search/physics?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+F">F. Bay</a>, <a href="/search/physics?searchtype=author&query=Bhat%2C+A">A. Bhat</a>, <a href="/search/physics?searchtype=author&query=Bhattacharya%2C+K">K. Bhattacharya</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/physics?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+L">L. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Caratelli%2C+D">D. Caratelli</a>, <a href="/search/physics?searchtype=author&query=Carr%2C+R">R. Carr</a>, <a href="/search/physics?searchtype=author&query=Terrazas%2C+I+C">I. Caro Terrazas</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+R+C">R. Castillo Fernandez</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a>, <a href="/search/physics?searchtype=author&query=Cerati%2C+G">G. Cerati</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H">H. Chen</a> , et al. (146 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1804.02583v3-abstract-short" style="display: inline;"> The single-phase liquid argon time projection chamber (LArTPC) provides a large amount of detailed information in the form of fine-grained drifted ionization charge from particle traces. To fully utilize this information, the deposited charge must be accurately extracted from the raw digitized waveforms via a robust signal processing chain. Enabled by the ultra-low noise levels associated with cry… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1804.02583v3-abstract-full').style.display = 'inline'; document.getElementById('1804.02583v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1804.02583v3-abstract-full" style="display: none;"> The single-phase liquid argon time projection chamber (LArTPC) provides a large amount of detailed information in the form of fine-grained drifted ionization charge from particle traces. To fully utilize this information, the deposited charge must be accurately extracted from the raw digitized waveforms via a robust signal processing chain. Enabled by the ultra-low noise levels associated with cryogenic electronics in the MicroBooNE detector, the precise extraction of ionization charge from the induction wire planes in a single-phase LArTPC is qualitatively demonstrated on MicroBooNE data with event display images, and quantitatively demonstrated via waveform-level and track-level metrics. Improved performance of induction plane calorimetry is demonstrated through the agreement of extracted ionization charge measurements across different wire planes for various event topologies. In addition to the comprehensive waveform-level comparison of data and simulation, a calibration of the cryogenic electronics response is presented and solutions to various MicroBooNE-specific TPC issues are discussed. This work presents an important improvement in LArTPC signal processing, the foundation of reconstruction and therefore physics analyses in MicroBooNE. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1804.02583v3-abstract-full').style.display = 'none'; document.getElementById('1804.02583v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 April, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">54 pages, 36 figures; the first part of this work can be found at arXiv:1802.08709</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 13 P07007 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1802.08709">arXiv:1802.08709</a> <span> [<a href="https://arxiv.org/pdf/1802.08709">pdf</a>, <a href="https://arxiv.org/format/1802.08709">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/13/07/P07006">10.1088/1748-0221/13/07/P07006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Ionization Electron Signal Processing in Single Phase LArTPCs I. Algorithm Description and Quantitative Evaluation with MicroBooNE Simulation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=MicroBooNE+collaboration"> MicroBooNE collaboration</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=An%2C+R">R. An</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Bagby%2C+L">L. Bagby</a>, <a href="/search/physics?searchtype=author&query=Balasubramanian%2C+S">S. Balasubramanian</a>, <a href="/search/physics?searchtype=author&query=Baller%2C+B">B. Baller</a>, <a href="/search/physics?searchtype=author&query=Barnes%2C+C">C. Barnes</a>, <a href="/search/physics?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+F">F. Bay</a>, <a href="/search/physics?searchtype=author&query=Bhat%2C+A">A. Bhat</a>, <a href="/search/physics?searchtype=author&query=Bhattacharya%2C+K">K. Bhattacharya</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/physics?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+L">L. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Caratelli%2C+D">D. Caratelli</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+R+C">R. Castillo Fernandez</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a>, <a href="/search/physics?searchtype=author&query=Cerati%2C+G">G. Cerati</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H">H. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a> , et al. (144 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1802.08709v3-abstract-short" style="display: inline;"> We describe the concept and procedure of drifted-charge extraction developed in the MicroBooNE experiment, a single-phase liquid argon time projection chamber (LArTPC). This technique converts the raw digitized TPC waveform to the number of ionization electrons passing through a wire plane at a given time. A robust recovery of the number of ionization electrons from both induction and collection a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1802.08709v3-abstract-full').style.display = 'inline'; document.getElementById('1802.08709v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1802.08709v3-abstract-full" style="display: none;"> We describe the concept and procedure of drifted-charge extraction developed in the MicroBooNE experiment, a single-phase liquid argon time projection chamber (LArTPC). This technique converts the raw digitized TPC waveform to the number of ionization electrons passing through a wire plane at a given time. A robust recovery of the number of ionization electrons from both induction and collection anode wire planes will augment the 3D reconstruction, and is particularly important for tomographic reconstruction algorithms. A number of building blocks of the overall procedure are described. The performance of the signal processing is quantitatively evaluated by comparing extracted charge with the true charge through a detailed TPC detector simulation taking into account position-dependent induced current inside a single wire region and across multiple wires. Some areas for further improvement of the performance of the charge extraction procedure are also discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1802.08709v3-abstract-full').style.display = 'none'; document.getElementById('1802.08709v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 April, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 February, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">60 pages, 36 figures. The second part of this work can be found at arXiv:1804.02583</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 13 P07006 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1801.08884">arXiv:1801.08884</a> <span> [<a href="https://arxiv.org/pdf/1801.08884">pdf</a>, <a href="https://arxiv.org/format/1801.08884">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> First Demonstration of a Pixelated Charge Readout for Single-Phase Liquid Argon Time Projection Chambers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Ereditato%2C+A">A. Ereditato</a>, <a href="/search/physics?searchtype=author&query=Goeldi%2C+D">D. Goeldi</a>, <a href="/search/physics?searchtype=author&query=Haenni%2C+R">R. Haenni</a>, <a href="/search/physics?searchtype=author&query=Kose%2C+U">U. Kose</a>, <a href="/search/physics?searchtype=author&query=Kreslo%2C+I">I Kreslo</a>, <a href="/search/physics?searchtype=author&query=Lorca%2C+D">D. Lorca</a>, <a href="/search/physics?searchtype=author&query=Luethi%2C+M">M. Luethi</a>, <a href="/search/physics?searchtype=author&query=Von+Rohr%2C+C+R">C. Rudolf Von Rohr</a>, <a href="/search/physics?searchtype=author&query=Sinclair%2C+J+R">J. R. Sinclair</a>, <a href="/search/physics?searchtype=author&query=Stocker%2C+F">F. Stocker</a>, <a href="/search/physics?searchtype=author&query=Tognina%2C+C">C. Tognina</a>, <a href="/search/physics?searchtype=author&query=Weber%2C+M">M. Weber</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1801.08884v1-abstract-short" style="display: inline;"> Liquid Argon Time Projection Chambers (LArTPCs) have been selected for the future long-baseline Deep Underground Neutrino Experiment (DUNE). To allow LArTPCs to operate in the high-multiplicity near detector environment of DUNE, a new charge readout technology is required. Traditional charge readout technologies introduce intrinsic ambiguities, combined with a slow detector response, these ambigui… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1801.08884v1-abstract-full').style.display = 'inline'; document.getElementById('1801.08884v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1801.08884v1-abstract-full" style="display: none;"> Liquid Argon Time Projection Chambers (LArTPCs) have been selected for the future long-baseline Deep Underground Neutrino Experiment (DUNE). To allow LArTPCs to operate in the high-multiplicity near detector environment of DUNE, a new charge readout technology is required. Traditional charge readout technologies introduce intrinsic ambiguities, combined with a slow detector response, these ambiguities have limited the performance of LArTPCs, until now. Here, we present a novel pixelated charge readout that enables the full 3D tracking capabilities of LArTPCs. We characterise the signal to noise ratio of charge readout chain, to be about 14, and demonstrate track reconstruction on 3D space points produced by the pixel readout. This pixelated charge readout makes LArTPCs a viable option for the DUNE near detector complex. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1801.08884v1-abstract-full').style.display = 'none'; document.getElementById('1801.08884v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 January, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 9 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1711.11409">arXiv:1711.11409</a> <span> [<a href="https://arxiv.org/pdf/1711.11409">pdf</a>, <a href="https://arxiv.org/format/1711.11409">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> ArCLight - a Compact Dielectric Large-Area Photon Detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Ereditato%2C+A">A. Ereditato</a>, <a href="/search/physics?searchtype=author&query=Goeldi%2C+D">D. Goeldi</a>, <a href="/search/physics?searchtype=author&query=Kreslo%2C+I">I. Kreslo</a>, <a href="/search/physics?searchtype=author&query=Lorca%2C+D">D. Lorca</a>, <a href="/search/physics?searchtype=author&query=Luethi%2C+M">M. Luethi</a>, <a href="/search/physics?searchtype=author&query=Mettler%2C+T">T. Mettler</a>, <a href="/search/physics?searchtype=author&query=Sinclair%2C+J+R">J. R. Sinclair</a>, <a href="/search/physics?searchtype=author&query=Weber%2C+M+S">M. S. Weber</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1711.11409v2-abstract-short" style="display: inline;"> ArCLight is a novel device for detecting scintillation light over large areas with Photon Detection Efficiency (PDE) of the order of a few percent. Its robust technological design allows for efficient use in large-volume particle detectors, such as Liquid Argon Time Projection Chambers (LArTPCs) or liquid scintillator detectors. Due to its dielectric structure it can be placed inside volumes with… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.11409v2-abstract-full').style.display = 'inline'; document.getElementById('1711.11409v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1711.11409v2-abstract-full" style="display: none;"> ArCLight is a novel device for detecting scintillation light over large areas with Photon Detection Efficiency (PDE) of the order of a few percent. Its robust technological design allows for efficient use in large-volume particle detectors, such as Liquid Argon Time Projection Chambers (LArTPCs) or liquid scintillator detectors. Due to its dielectric structure it can be placed inside volumes with high electric field. It could potentially replace vacuum PhotoMultiplier Tubes (PMTs) in applications where high PDE is not required. The photon detection efficiency for a 10x10cm2 detector prototype was measured to be in the range of 0.8% to 2.2% across the active area. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.11409v2-abstract-full').style.display = 'none'; document.getElementById('1711.11409v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 January, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 November, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2017. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1708.03135">arXiv:1708.03135</a> <span> [<a href="https://arxiv.org/pdf/1708.03135">pdf</a>, <a href="https://arxiv.org/format/1708.03135">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> </div> </div> <p class="title is-5 mathjax"> The Pandora multi-algorithm approach to automated pattern recognition of cosmic-ray muon and neutrino events in the MicroBooNE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=MicroBooNE+collaboration"> MicroBooNE collaboration</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=An%2C+R">R. An</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Bagby%2C+L">L. Bagby</a>, <a href="/search/physics?searchtype=author&query=Balasubramanian%2C+S">S. Balasubramanian</a>, <a href="/search/physics?searchtype=author&query=Baller%2C+B">B. Baller</a>, <a href="/search/physics?searchtype=author&query=Barnes%2C+C">C. Barnes</a>, <a href="/search/physics?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+F">F. Bay</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/physics?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+L">L. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Caratelli%2C+D">D. Caratelli</a>, <a href="/search/physics?searchtype=author&query=Carls%2C+B">B. Carls</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+R+C">R. Castillo Fernandez</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H">H. Chen</a>, <a href="/search/physics?searchtype=author&query=Church%2C+E">E. Church</a>, <a href="/search/physics?searchtype=author&query=Cianci%2C+D">D. Cianci</a> , et al. (123 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1708.03135v1-abstract-short" style="display: inline;"> The development and operation of Liquid-Argon Time-Projection Chambers for neutrino physics has created a need for new approaches to pattern recognition in order to fully exploit the imaging capabilities offered by this technology. Whereas the human brain can excel at identifying features in the recorded events, it is a significant challenge to develop an automated, algorithmic solution. The Pando… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1708.03135v1-abstract-full').style.display = 'inline'; document.getElementById('1708.03135v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1708.03135v1-abstract-full" style="display: none;"> The development and operation of Liquid-Argon Time-Projection Chambers for neutrino physics has created a need for new approaches to pattern recognition in order to fully exploit the imaging capabilities offered by this technology. Whereas the human brain can excel at identifying features in the recorded events, it is a significant challenge to develop an automated, algorithmic solution. The Pandora Software Development Kit provides functionality to aid the design and implementation of pattern-recognition algorithms. It promotes the use of a multi-algorithm approach to pattern recognition, in which individual algorithms each address a specific task in a particular topology. Many tens of algorithms then carefully build up a picture of the event and, together, provide a robust automated pattern-recognition solution. This paper describes details of the chain of over one hundred Pandora algorithms and tools used to reconstruct cosmic-ray muon and neutrino events in the MicroBooNE detector. Metrics that assess the current pattern-recognition performance are presented for simulated MicroBooNE events, using a selection of final-state event topologies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1708.03135v1-abstract-full').style.display = 'none'; document.getElementById('1708.03135v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 August, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Preprint to be submitted to The European Physical Journal C</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1706.07081">arXiv:1706.07081</a> <span> [<a href="https://arxiv.org/pdf/1706.07081">pdf</a>, <a href="https://arxiv.org/format/1706.07081">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> The Single-Phase ProtoDUNE Technical Design Report </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D+L">D. L. Adams</a>, <a href="/search/physics?searchtype=author&query=Adamson%2C+P">P. Adamson</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Albright%2C+C+H">C. H. Albright</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+K">K. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+R+A">R. A. Andrews</a>, <a href="/search/physics?searchtype=author&query=Anjos%2C+J+d">J. dos Anjos</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Antonello%2C+M">M. Antonello</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+A+A">A. Aranda Fernandez</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+A">A. Ariga</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+T">T. Ariga</a>, <a href="/search/physics?searchtype=author&query=Diaz%2C+E+A">E. Arrieta Diaz</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a> , et al. (806 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1706.07081v2-abstract-short" style="display: inline;"> ProtoDUNE-SP is the single-phase DUNE Far Detector prototype that is under construction and will be operated at the CERN Neutrino Platform (NP) starting in 2018. ProtoDUNE-SP, a crucial part of the DUNE effort towards the construction of the first DUNE 10-kt fiducial mass far detector module (17 kt total LAr mass), is a significant experiment in its own right. With a total liquid argon (LAr) mass… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1706.07081v2-abstract-full').style.display = 'inline'; document.getElementById('1706.07081v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1706.07081v2-abstract-full" style="display: none;"> ProtoDUNE-SP is the single-phase DUNE Far Detector prototype that is under construction and will be operated at the CERN Neutrino Platform (NP) starting in 2018. ProtoDUNE-SP, a crucial part of the DUNE effort towards the construction of the first DUNE 10-kt fiducial mass far detector module (17 kt total LAr mass), is a significant experiment in its own right. With a total liquid argon (LAr) mass of 0.77 kt, it represents the largest monolithic single-phase LArTPC detector to be built to date. It's technical design is given in this report. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1706.07081v2-abstract-full').style.display = 'none'; document.getElementById('1706.07081v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 July, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 June, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">165 pages, fix references, author list and minor numbers</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1705.07486">arXiv:1705.07486</a> <span> [<a href="https://arxiv.org/pdf/1705.07486">pdf</a>, <a href="https://arxiv.org/format/1705.07486">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/13/01/P01011">10.1088/1748-0221/13/01/P01011 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A system for online beam emittance measurements and proton beam characterization </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Nesteruk%2C+K+P">K. P. Nesteruk</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Braccini%2C+S">S. Braccini</a>, <a href="/search/physics?searchtype=author&query=Carzaniga%2C+T+S">T. S. Carzaniga</a>, <a href="/search/physics?searchtype=author&query=Ereditato%2C+A">A. Ereditato</a>, <a href="/search/physics?searchtype=author&query=Scampoli%2C+P">P. Scampoli</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1705.07486v3-abstract-short" style="display: inline;"> A system for online measurement of the transverse beam emittance was developed. It is named $^{4}$PrOB$\varepsilon$aM (4-Profiler Online Beam Emittance Measurement) and was conceived to measure the emittance in a fast and efficient way using the multiple beam profiler method. The core of the system is constituted by four consecutive UniBEaM profilers, which are based on silica fibers passing acros… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1705.07486v3-abstract-full').style.display = 'inline'; document.getElementById('1705.07486v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1705.07486v3-abstract-full" style="display: none;"> A system for online measurement of the transverse beam emittance was developed. It is named $^{4}$PrOB$\varepsilon$aM (4-Profiler Online Beam Emittance Measurement) and was conceived to measure the emittance in a fast and efficient way using the multiple beam profiler method. The core of the system is constituted by four consecutive UniBEaM profilers, which are based on silica fibers passing across the beam. The $^{4}$PrOB$\varepsilon$aM system was deployed for characterization studies of the 18~MeV proton beam produced by the IBA Cyclone 18 MeV cyclotron at Bern University Hospital (Inselspital). The machine serves daily radioisotope production and multi-disciplinary research, which is carried out with a specifically conceived Beam Transport Line (BTL). The transverse RMS beam emittance of the cyclotron was measured as a function of several machine parameters, such as the magnetic field, RF peak voltage, and azimuthal angle of the stripper. The beam emittance was also measured using the method based on the quadrupole strength variation. The results obtained with both techniques were compared and a good agreement was found. In order to characterize the longitudinal dynamics, the proton energy distribution was measured. For this purpose, a method was developed based on aluminum absorbers of different thicknesses, a UniBEaM detector, and a Faraday cup. The results were an input for a simulation of the BTL developed in the MAD-X software. This tool allows machine parameters to be tuned online and the beam characteristics to be optimized for specific applications. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1705.07486v3-abstract-full').style.display = 'none'; document.getElementById('1705.07486v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 March, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 May, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">published in Journal of Instrumentation</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> 2018 JINST 13 P01011 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1705.07341">arXiv:1705.07341</a> <span> [<a href="https://arxiv.org/pdf/1705.07341">pdf</a>, <a href="https://arxiv.org/format/1705.07341">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/12/08/P08003">10.1088/1748-0221/12/08/P08003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Noise Characterization and Filtering in the MicroBooNE Liquid Argon TPC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=MicroBooNE+collaboration"> MicroBooNE collaboration</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=An%2C+R">R. An</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Bagby%2C+L">L. Bagby</a>, <a href="/search/physics?searchtype=author&query=Balasubramanian%2C+S">S. Balasubramanian</a>, <a href="/search/physics?searchtype=author&query=Baller%2C+B">B. Baller</a>, <a href="/search/physics?searchtype=author&query=Barnes%2C+C">C. Barnes</a>, <a href="/search/physics?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+F">F. Bay</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/physics?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/physics?searchtype=author&query=Bullard%2C+B">B. Bullard</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+L">L. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Caratelli%2C+D">D. Caratelli</a>, <a href="/search/physics?searchtype=author&query=Carls%2C+B">B. Carls</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+R+C">R. Castillo Fernandez</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H">H. Chen</a>, <a href="/search/physics?searchtype=author&query=Church%2C+E">E. Church</a> , et al. (130 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1705.07341v1-abstract-short" style="display: inline;"> The low-noise operation of readout electronics in a liquid argon time projection chamber (LArTPC) is critical to properly extract the distribution of ionization charge deposited on the wire planes of the TPC, especially for the induction planes. This paper describes the characteristics and mitigation of the observed noise in the MicroBooNE detector. The MicroBooNE's single-phase LArTPC comprises t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1705.07341v1-abstract-full').style.display = 'inline'; document.getElementById('1705.07341v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1705.07341v1-abstract-full" style="display: none;"> The low-noise operation of readout electronics in a liquid argon time projection chamber (LArTPC) is critical to properly extract the distribution of ionization charge deposited on the wire planes of the TPC, especially for the induction planes. This paper describes the characteristics and mitigation of the observed noise in the MicroBooNE detector. The MicroBooNE's single-phase LArTPC comprises two induction planes and one collection sense wire plane with a total of 8256 wires. Current induced on each TPC wire is amplified and shaped by custom low-power, low-noise ASICs immersed in the liquid argon. The digitization of the signal waveform occurs outside the cryostat. Using data from the first year of MicroBooNE operations, several excess noise sources in the TPC were identified and mitigated. The residual equivalent noise charge (ENC) after noise filtering varies with wire length and is found to be below 400 electrons for the longest wires (4.7 m). The response is consistent with the cold electronics design expectations and is found to be stable with time and uniform over the functioning channels. This noise level is significantly lower than previous experiments utilizing warm front-end electronics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1705.07341v1-abstract-full').style.display = 'none'; document.getElementById('1705.07341v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 May, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">36 pages, 20 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 12 P08003 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1704.02927">arXiv:1704.02927</a> <span> [<a href="https://arxiv.org/pdf/1704.02927">pdf</a>, <a href="https://arxiv.org/format/1704.02927">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/12/09/P09014">10.1088/1748-0221/12/09/P09014 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Michel Electron Reconstruction Using Cosmic-Ray Data from the MicroBooNE LArTPC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=MicroBooNE+collaboration"> MicroBooNE collaboration</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=An%2C+R">R. An</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Bagby%2C+L">L. Bagby</a>, <a href="/search/physics?searchtype=author&query=Balasubramanian%2C+S">S. Balasubramanian</a>, <a href="/search/physics?searchtype=author&query=Baller%2C+B">B. Baller</a>, <a href="/search/physics?searchtype=author&query=Barnes%2C+C">C. Barnes</a>, <a href="/search/physics?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+F">F. Bay</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/physics?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/physics?searchtype=author&query=Bugel%2C+L">L. Bugel</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+L">L. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Caratelli%2C+D">D. Caratelli</a>, <a href="/search/physics?searchtype=author&query=Carls%2C+B">B. Carls</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+R+C">R. Castillo Fernandez</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H">H. Chen</a>, <a href="/search/physics?searchtype=author&query=Church%2C+E">E. Church</a> , et al. (121 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1704.02927v2-abstract-short" style="display: inline;"> The MicroBooNE liquid argon time projection chamber (LArTPC) has been taking data at Fermilab since 2015 collecting, in addition to neutrino beam, cosmic-ray muons. Results are presented on the reconstruction of Michel electrons produced by the decay at rest of cosmic-ray muons. Michel electrons are abundantly produced in the TPC, and given their well known energy spectrum can be used to study Mic… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1704.02927v2-abstract-full').style.display = 'inline'; document.getElementById('1704.02927v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1704.02927v2-abstract-full" style="display: none;"> The MicroBooNE liquid argon time projection chamber (LArTPC) has been taking data at Fermilab since 2015 collecting, in addition to neutrino beam, cosmic-ray muons. Results are presented on the reconstruction of Michel electrons produced by the decay at rest of cosmic-ray muons. Michel electrons are abundantly produced in the TPC, and given their well known energy spectrum can be used to study MicroBooNE's detector response to low-energy electrons (electrons with energies up to ~50 MeV). We describe the fully-automated algorithm developed to reconstruct Michel electrons, with which a sample of ~14,000 Michel electron candidates is obtained. Most of this article is dedicated to studying the impact of radiative photons produced by Michel electrons on the accuracy and resolution of their energy measurement. In this energy range, ionization and bremsstrahlung photon production contribute similarly to electron energy loss in argon, leading to a complex electron topology in the TPC. By profiling the performance of the reconstruction algorithm on simulation we show that the ability to identify and include energy deposited by radiative photons leads to a significant improvement in the energy measurement of low-energy electrons. The fractional energy resolution we measure improves from over 30% to ~20% when we attempt to include radiative photons in the reconstruction. These studies are relevant to a large number of analyses which aim to study neutrinos by measuring electrons produced by $谓_e$ interactions over a broad energy range. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1704.02927v2-abstract-full').style.display = 'none'; document.getElementById('1704.02927v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 August, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 April, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 12 P09014 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1703.06187">arXiv:1703.06187</a> <span> [<a href="https://arxiv.org/pdf/1703.06187">pdf</a>, <a href="https://arxiv.org/format/1703.06187">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/12/10/P10010">10.1088/1748-0221/12/10/P10010 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Determination of muon momentum in the MicroBooNE LArTPC using an improved model of multiple Coulomb scattering </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=MicroBooNE+collaboration"> MicroBooNE collaboration</a>, <a href="/search/physics?searchtype=author&query=Abratenko%2C+P">P. Abratenko</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=An%2C+R">R. An</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Bagby%2C+L">L. Bagby</a>, <a href="/search/physics?searchtype=author&query=Balasubramanian%2C+S">S. Balasubramanian</a>, <a href="/search/physics?searchtype=author&query=Baller%2C+B">B. Baller</a>, <a href="/search/physics?searchtype=author&query=Barnes%2C+C">C. Barnes</a>, <a href="/search/physics?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+F">F. Bay</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/physics?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/physics?searchtype=author&query=Bugel%2C+L">L. Bugel</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+L">L. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Caratelli%2C+D">D. Caratelli</a>, <a href="/search/physics?searchtype=author&query=Carls%2C+B">B. Carls</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+R+C">R. Castillo Fernandez</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H">H. Chen</a>, <a href="/search/physics?searchtype=author&query=Church%2C+E">E. Church</a> , et al. (123 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1703.06187v3-abstract-short" style="display: inline;"> We discuss a technique for measuring a charged particle's momentum by means of multiple Coulomb scattering (MCS) in the MicroBooNE liquid argon time projection chamber (LArTPC). This method does not require the full particle ionization track to be contained inside of the detector volume as other track momentum reconstruction methods do (range-based momentum reconstruction and calorimetric momentum… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.06187v3-abstract-full').style.display = 'inline'; document.getElementById('1703.06187v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1703.06187v3-abstract-full" style="display: none;"> We discuss a technique for measuring a charged particle's momentum by means of multiple Coulomb scattering (MCS) in the MicroBooNE liquid argon time projection chamber (LArTPC). This method does not require the full particle ionization track to be contained inside of the detector volume as other track momentum reconstruction methods do (range-based momentum reconstruction and calorimetric momentum reconstruction). We motivate use of this technique, describe a tuning of the underlying phenomenological formula, quantify its performance on fully contained beam-neutrino-induced muon tracks both in simulation and in data, and quantify its performance on exiting muon tracks in simulation. Using simulation, we have shown that the standard Highland formula should be re-tuned specifically for scattering in liquid argon, which significantly improves the bias and resolution of the momentum measurement. With the tuned formula, we find agreement between data and simulation for contained tracks, with a small bias in the momentum reconstruction and with resolutions that vary as a function of track length, improving from about 10% for the shortest (one meter long) tracks to 5% for longer (several meter) tracks. For simulated exiting muons with at least one meter of track contained, we find a similarly small bias, and a resolution which is less than 15% for muons with momentum below 2 GeV/c. Above 2 GeV/c, results are given as a first estimate of the MCS momentum measurement capabilities of MicroBooNE for high momentum exiting tracks. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.06187v3-abstract-full').style.display = 'none'; document.getElementById('1703.06187v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 October, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 March, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2017. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1612.05824">arXiv:1612.05824</a> <span> [<a href="https://arxiv.org/pdf/1612.05824">pdf</a>, <a href="https://arxiv.org/format/1612.05824">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/12/02/P02017">10.1088/1748-0221/12/02/P02017 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Design and Construction of the MicroBooNE Detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=MicroBooNE+Collaboration"> MicroBooNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=An%2C+R">R. An</a>, <a href="/search/physics?searchtype=author&query=Aparicio%2C+A">A. Aparicio</a>, <a href="/search/physics?searchtype=author&query=Aponte%2C+S">S. Aponte</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Ayoub%2C+N">N. Ayoub</a>, <a href="/search/physics?searchtype=author&query=Bagby%2C+L">L. Bagby</a>, <a href="/search/physics?searchtype=author&query=Baller%2C+B">B. Baller</a>, <a href="/search/physics?searchtype=author&query=Barger%2C+R">R. Barger</a>, <a href="/search/physics?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+F">F. Bay</a>, <a href="/search/physics?searchtype=author&query=Biery%2C+K">K. Biery</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/physics?searchtype=author&query=Bocean%2C+V">V. Bocean</a>, <a href="/search/physics?searchtype=author&query=Boehnlein%2C+D">D. Boehnlein</a>, <a href="/search/physics?searchtype=author&query=Bogert%2C+V+D">V. D. Bogert</a>, <a href="/search/physics?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/physics?searchtype=author&query=Bugel%2C+L">L. Bugel</a>, <a href="/search/physics?searchtype=author&query=Callahan%2C+C">C. Callahan</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+L">L. Camilleri</a> , et al. (215 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1612.05824v2-abstract-short" style="display: inline;"> This paper describes the design and construction of the MicroBooNE liquid argon time projection chamber and associated systems. MicroBooNE is the first phase of the Short Baseline Neutrino program, located at Fermilab, and will utilize the capabilities of liquid argon detectors to examine a rich assortment of physics topics. In this document details of design specifications, assembly procedures, a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.05824v2-abstract-full').style.display = 'inline'; document.getElementById('1612.05824v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1612.05824v2-abstract-full" style="display: none;"> This paper describes the design and construction of the MicroBooNE liquid argon time projection chamber and associated systems. MicroBooNE is the first phase of the Short Baseline Neutrino program, located at Fermilab, and will utilize the capabilities of liquid argon detectors to examine a rich assortment of physics topics. In this document details of design specifications, assembly procedures, and acceptance tests are reported. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.05824v2-abstract-full').style.display = 'none'; document.getElementById('1612.05824v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 January, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 December, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2016. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1612.04614">arXiv:1612.04614</a> <span> [<a href="https://arxiv.org/pdf/1612.04614">pdf</a>, <a href="https://arxiv.org/format/1612.04614">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> A Novel Cosmic Ray Tagger System for Liquid Argon TPC Neutrino Detectors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Del+Tutto%2C+M">M. Del Tutto</a>, <a href="/search/physics?searchtype=author&query=Ereditato%2C+A">A. Ereditato</a>, <a href="/search/physics?searchtype=author&query=Fleming%2C+B">B. Fleming</a>, <a href="/search/physics?searchtype=author&query=Goeldi%2C+D">D. Goeldi</a>, <a href="/search/physics?searchtype=author&query=Gramellini%2C+E">E. Gramellini</a>, <a href="/search/physics?searchtype=author&query=Guenette%2C+R">R. Guenette</a>, <a href="/search/physics?searchtype=author&query=Ketchum%2C+W">W. Ketchum</a>, <a href="/search/physics?searchtype=author&query=Kreslo%2C+I">I. Kreslo</a>, <a href="/search/physics?searchtype=author&query=Laube%2C+A">A. Laube</a>, <a href="/search/physics?searchtype=author&query=Lorca%2C+D">D. Lorca</a>, <a href="/search/physics?searchtype=author&query=Luethi%2C+M">M. Luethi</a>, <a href="/search/physics?searchtype=author&query=von+Rohr%2C+C+R">C. Rudolf von Rohr</a>, <a href="/search/physics?searchtype=author&query=Sinclair%2C+J+R">J. R. Sinclair</a>, <a href="/search/physics?searchtype=author&query=Soleti%2C+S+R">S. R. Soleti</a>, <a href="/search/physics?searchtype=author&query=Weber%2C+M">M. Weber</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1612.04614v1-abstract-short" style="display: inline;"> The Fermilab Short Baseline Neutrino (SBN) program aims to observe and reconstruct thousands of neutrino-argon interactions with its three detectors (SBND, MicroBooNE and ICARUS-T600), using their hundred of tonnes Liquid Argon Time Projection Chambers to perform a rich physics analysis program, in particular focused in the search for sterile neutrinos. Given the relatively shallow depth of the de… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.04614v1-abstract-full').style.display = 'inline'; document.getElementById('1612.04614v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1612.04614v1-abstract-full" style="display: none;"> The Fermilab Short Baseline Neutrino (SBN) program aims to observe and reconstruct thousands of neutrino-argon interactions with its three detectors (SBND, MicroBooNE and ICARUS-T600), using their hundred of tonnes Liquid Argon Time Projection Chambers to perform a rich physics analysis program, in particular focused in the search for sterile neutrinos. Given the relatively shallow depth of the detectors, the continuos flux of cosmic ray particles which crossing their volumes introduces a constant background which can be falsely identified as part of the event of interest. Here we present the Cosmic Ray Tagger (CRT) system, a novel technique to tag and identify these crossing particles using scintillation modules which measure their time and coordinates relative to events internal to the neutrino detector, mitigating therefore their effect in the event tracking reconstruction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.04614v1-abstract-full').style.display = 'none'; document.getElementById('1612.04614v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 December, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2016. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1611.05531">arXiv:1611.05531</a> <span> [<a href="https://arxiv.org/pdf/1611.05531">pdf</a>, <a href="https://arxiv.org/format/1611.05531">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/12/03/P03011">10.1088/1748-0221/12/03/P03011 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Convolutional Neural Networks Applied to Neutrino Events in a Liquid Argon Time Projection Chamber </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=MicroBooNE+collaboration"> MicroBooNE collaboration</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=An%2C+R">R. An</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Bagby%2C+L">L. Bagby</a>, <a href="/search/physics?searchtype=author&query=Baller%2C+B">B. Baller</a>, <a href="/search/physics?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+F">F. Bay</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/physics?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/physics?searchtype=author&query=Bugel%2C+L">L. Bugel</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+L">L. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Caratelli%2C+D">D. Caratelli</a>, <a href="/search/physics?searchtype=author&query=Carls%2C+B">B. Carls</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+R+C">R. Castillo Fernandez</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H">H. Chen</a>, <a href="/search/physics?searchtype=author&query=Church%2C+E">E. Church</a>, <a href="/search/physics?searchtype=author&query=Cianci%2C+D">D. Cianci</a>, <a href="/search/physics?searchtype=author&query=Collin%2C+G+H">G. H. Collin</a>, <a href="/search/physics?searchtype=author&query=Conrad%2C+J+M">J. M. Conrad</a> , et al. (114 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1611.05531v1-abstract-short" style="display: inline;"> We present several studies of convolutional neural networks applied to data coming from the MicroBooNE detector, a liquid argon time projection chamber (LArTPC). The algorithms studied include the classification of single particle images, the localization of single particle and neutrino interactions in an image, and the detection of a simulated neutrino event overlaid with cosmic ray backgrounds t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1611.05531v1-abstract-full').style.display = 'inline'; document.getElementById('1611.05531v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1611.05531v1-abstract-full" style="display: none;"> We present several studies of convolutional neural networks applied to data coming from the MicroBooNE detector, a liquid argon time projection chamber (LArTPC). The algorithms studied include the classification of single particle images, the localization of single particle and neutrino interactions in an image, and the detection of a simulated neutrino event overlaid with cosmic ray backgrounds taken from real detector data. These studies demonstrate the potential of convolutional neural networks for particle identification or event detection on simulated neutrino interactions. We also address technical issues that arise when applying this technique to data from a large LArTPC at or near ground level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1611.05531v1-abstract-full').style.display = 'none'; document.getElementById('1611.05531v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 November, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2016. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1606.02290">arXiv:1606.02290</a> <span> [<a href="https://arxiv.org/pdf/1606.02290">pdf</a>, <a href="https://arxiv.org/format/1606.02290">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/11/10/P10005">10.1088/1748-0221/11/10/P10005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Multi-channel front-end board for SiPM readout </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Ereditato%2C+A">A. Ereditato</a>, <a href="/search/physics?searchtype=author&query=Goeldi%2C+D">D. Goeldi</a>, <a href="/search/physics?searchtype=author&query=Kreslo%2C+I">I. Kreslo</a>, <a href="/search/physics?searchtype=author&query=Lorca%2C+D">D. Lorca</a>, <a href="/search/physics?searchtype=author&query=Luethi%2C+M">M. Luethi</a>, <a href="/search/physics?searchtype=author&query=von+Rohr%2C+C+R">C. Rudolf von Rohr</a>, <a href="/search/physics?searchtype=author&query=Sinclair%2C+J">J. Sinclair</a>, <a href="/search/physics?searchtype=author&query=Weber%2C+M+S">M. S. Weber</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1606.02290v1-abstract-short" style="display: inline;"> We describe a novel high-speed front-end electronic board (FEB) for interfacing an array of 32 Silicon Photo-multipliers (SiPM) with a computer. The FEB provides individually adjustable bias on the SiPMs, and performs low-noise analog signal amplification, conditioning and digitization. It provides event timing information accurate to 1.3 ns RMS. The back-end data interface is realized on the basi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1606.02290v1-abstract-full').style.display = 'inline'; document.getElementById('1606.02290v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1606.02290v1-abstract-full" style="display: none;"> We describe a novel high-speed front-end electronic board (FEB) for interfacing an array of 32 Silicon Photo-multipliers (SiPM) with a computer. The FEB provides individually adjustable bias on the SiPMs, and performs low-noise analog signal amplification, conditioning and digitization. It provides event timing information accurate to 1.3 ns RMS. The back-end data interface is realized on the basis of 100 Mbps Ethernet. The design allows daisy-chaining of up to 256 units into one network interface, thus enabling compact and efficient readout schemes for multi-channel scintillating detectors, using SiPMs as photo-sensors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1606.02290v1-abstract-full').style.display = 'none'; document.getElementById('1606.02290v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 June, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2016. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1601.05471">arXiv:1601.05471</a> <span> [<a href="https://arxiv.org/pdf/1601.05471">pdf</a>, <a href="https://arxiv.org/format/1601.05471">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 1: The LBNF and DUNE Projects </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Adamson%2C+P">P. Adamson</a>, <a href="/search/physics?searchtype=author&query=Adhikari%2C+S">S. Adhikari</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Albright%2C+C+H">C. H. Albright</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Amador%2C+E">E. Amador</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+K">K. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M">M. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+R">R. Andrews</a>, <a href="/search/physics?searchtype=author&query=Anghel%2C+I">I. Anghel</a>, <a href="/search/physics?searchtype=author&query=Anjos%2C+J+d">J. d. Anjos</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Antonello%2C+M">M. Antonello</a>, <a href="/search/physics?searchtype=author&query=ArandaFernandez%2C+A">A. ArandaFernandez</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+A">A. Ariga</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+T">T. Ariga</a>, <a href="/search/physics?searchtype=author&query=Aristizabal%2C+D">D. Aristizabal</a>, <a href="/search/physics?searchtype=author&query=Arrieta-Diaz%2C+E">E. Arrieta-Diaz</a>, <a href="/search/physics?searchtype=author&query=Aryal%2C+K">K. Aryal</a> , et al. (780 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1601.05471v1-abstract-short" style="display: inline;"> This document presents the Conceptual Design Report (CDR) put forward by an international neutrino community to pursue the Deep Underground Neutrino Experiment at the Long-Baseline Neutrino Facility (LBNF/DUNE), a groundbreaking science experiment for long-baseline neutrino oscillation studies and for neutrino astrophysics and nucleon decay searches. The DUNE far detector will be a very large modu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.05471v1-abstract-full').style.display = 'inline'; document.getElementById('1601.05471v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1601.05471v1-abstract-full" style="display: none;"> This document presents the Conceptual Design Report (CDR) put forward by an international neutrino community to pursue the Deep Underground Neutrino Experiment at the Long-Baseline Neutrino Facility (LBNF/DUNE), a groundbreaking science experiment for long-baseline neutrino oscillation studies and for neutrino astrophysics and nucleon decay searches. The DUNE far detector will be a very large modular liquid argon time-projection chamber (LArTPC) located deep underground, coupled to the LBNF multi-megawatt wide-band neutrino beam. DUNE will also have a high-resolution and high-precision near detector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.05471v1-abstract-full').style.display = 'none'; document.getElementById('1601.05471v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2016. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1601.02984">arXiv:1601.02984</a> <span> [<a href="https://arxiv.org/pdf/1601.02984">pdf</a>, <a href="https://arxiv.org/format/1601.02984">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report, Volume 4 The DUNE Detectors at LBNF </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Adamson%2C+P">P. Adamson</a>, <a href="/search/physics?searchtype=author&query=Adhikari%2C+S">S. Adhikari</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Albright%2C+C+H">C. H. Albright</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Amador%2C+E">E. Amador</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+K">K. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M">M. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+R">R. Andrews</a>, <a href="/search/physics?searchtype=author&query=Anghel%2C+I">I. Anghel</a>, <a href="/search/physics?searchtype=author&query=Anjos%2C+J+d">J. d. Anjos</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Antonello%2C+M">M. Antonello</a>, <a href="/search/physics?searchtype=author&query=ArandaFernandez%2C+A">A. ArandaFernandez</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+A">A. Ariga</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+T">T. Ariga</a>, <a href="/search/physics?searchtype=author&query=Aristizabal%2C+D">D. Aristizabal</a>, <a href="/search/physics?searchtype=author&query=Arrieta-Diaz%2C+E">E. Arrieta-Diaz</a>, <a href="/search/physics?searchtype=author&query=Aryal%2C+K">K. Aryal</a> , et al. (779 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1601.02984v1-abstract-short" style="display: inline;"> A description of the proposed detector(s) for DUNE at LBNF </span> <span class="abstract-full has-text-grey-dark mathjax" id="1601.02984v1-abstract-full" style="display: none;"> A description of the proposed detector(s) for DUNE at LBNF <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.02984v1-abstract-full').style.display = 'none'; document.getElementById('1601.02984v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2016. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1512.06148">arXiv:1512.06148</a> <span> [<a href="https://arxiv.org/pdf/1512.06148">pdf</a>, <a href="https://arxiv.org/format/1512.06148">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 2: The Physics Program for DUNE at LBNF </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Adamson%2C+P">P. Adamson</a>, <a href="/search/physics?searchtype=author&query=Adhikari%2C+S">S. Adhikari</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Albright%2C+C+H">C. H. Albright</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Amador%2C+E">E. Amador</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+K">K. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M">M. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+R">R. Andrews</a>, <a href="/search/physics?searchtype=author&query=Anghel%2C+I">I. Anghel</a>, <a href="/search/physics?searchtype=author&query=Anjos%2C+J+d">J. d. Anjos</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Antonello%2C+M">M. Antonello</a>, <a href="/search/physics?searchtype=author&query=ArandaFernandez%2C+A">A. ArandaFernandez</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+A">A. Ariga</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+T">T. Ariga</a>, <a href="/search/physics?searchtype=author&query=Aristizabal%2C+D">D. Aristizabal</a>, <a href="/search/physics?searchtype=author&query=Arrieta-Diaz%2C+E">E. Arrieta-Diaz</a> , et al. (780 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1512.06148v2-abstract-short" style="display: inline;"> The Physics Program for the Deep Underground Neutrino Experiment (DUNE) at the Fermilab Long-Baseline Neutrino Facility (LBNF) is described. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1512.06148v2-abstract-full" style="display: none;"> The Physics Program for the Deep Underground Neutrino Experiment (DUNE) at the Fermilab Long-Baseline Neutrino Facility (LBNF) is described. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.06148v2-abstract-full').style.display = 'none'; document.getElementById('1512.06148v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2015. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1512.05968">arXiv:1512.05968</a> <span> [<a href="https://arxiv.org/pdf/1512.05968">pdf</a>, <a href="https://arxiv.org/format/1512.05968">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/11/03/P03017">10.1088/1748-0221/11/03/P03017 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> On the Electric Breakdown in Liquid Argon at Centimeter Scale </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Blatter%2C+A">A. Blatter</a>, <a href="/search/physics?searchtype=author&query=Ereditato%2C+A">A. Ereditato</a>, <a href="/search/physics?searchtype=author&query=Goeldi%2C+D">D. Goeldi</a>, <a href="/search/physics?searchtype=author&query=Janos%2C+S">S. Janos</a>, <a href="/search/physics?searchtype=author&query=Kreslo%2C+I">I. Kreslo</a>, <a href="/search/physics?searchtype=author&query=Luethi%2C+M">M. Luethi</a>, <a href="/search/physics?searchtype=author&query=von+Rohr%2C+C+R">C. Rudolf von Rohr</a>, <a href="/search/physics?searchtype=author&query=Strauss%2C+T">T. Strauss</a>, <a href="/search/physics?searchtype=author&query=Weber%2C+M+S">M. S. Weber</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1512.05968v2-abstract-short" style="display: inline;"> We present a study on the dependence of electric breakdown discharge properties on electrode geometry and the breakdown field in liquid argon near its boiling point. The measurements were performed with a spherical cathode and a planar anode at distances ranging from 0.1 mm to 10.0 mm. A detailed study of the time evolution of the breakdown volt-ampere characteristics was performed for the first t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.05968v2-abstract-full').style.display = 'inline'; document.getElementById('1512.05968v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1512.05968v2-abstract-full" style="display: none;"> We present a study on the dependence of electric breakdown discharge properties on electrode geometry and the breakdown field in liquid argon near its boiling point. The measurements were performed with a spherical cathode and a planar anode at distances ranging from 0.1 mm to 10.0 mm. A detailed study of the time evolution of the breakdown volt-ampere characteristics was performed for the first time. It revealed a slow streamer development phase in the discharge. The results of a spectroscopic study of the visible light emission of the breakdowns complement the measurements. The light emission from the initial phase of the discharge is attributed to electro-luminescence of liquid argon following a current of drifting electrons. These results contribute to set benchmarks for breakdown-safe design of ionization detectors, such as Liquid Argon Time Projection Chambers (LAr TPC). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.05968v2-abstract-full').style.display = 'none'; document.getElementById('1512.05968v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 March, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Minor revision according to editor report. 17 pages, 15 figures, 2 tables. Turboencabulator</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> 2016 JINST 11 P03017 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1503.07698">arXiv:1503.07698</a> <span> [<a href="https://arxiv.org/pdf/1503.07698">pdf</a>, <a href="https://arxiv.org/format/1503.07698">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-015-3657-5">10.1140/epjc/s10052-015-3657-5 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Lowering the radioactivity of the photomultiplier tubes for the XENON1T dark matter experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Aprile%2C+E">E. Aprile</a>, <a href="/search/physics?searchtype=author&query=Agostini%2C+F">F. Agostini</a>, <a href="/search/physics?searchtype=author&query=Alfonsi%2C+M">M. Alfonsi</a>, <a href="/search/physics?searchtype=author&query=Arazi%2C+L">L. Arazi</a>, <a href="/search/physics?searchtype=author&query=Arisaka%2C+K">K. Arisaka</a>, <a href="/search/physics?searchtype=author&query=Arneodo%2C+F">F. Arneodo</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Balan%2C+C">C. Balan</a>, <a href="/search/physics?searchtype=author&query=Barrow%2C+P">P. Barrow</a>, <a href="/search/physics?searchtype=author&query=Baudis%2C+L">L. Baudis</a>, <a href="/search/physics?searchtype=author&query=Bauermeister%2C+B">B. Bauermeister</a>, <a href="/search/physics?searchtype=author&query=Behrens%2C+A">A. Behrens</a>, <a href="/search/physics?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+E">E. Brown</a>, <a href="/search/physics?searchtype=author&query=Bruenner%2C+S">S. Bruenner</a>, <a href="/search/physics?searchtype=author&query=Bruno%2C+G">G. Bruno</a>, <a href="/search/physics?searchtype=author&query=Budnik%2C+R">R. Budnik</a>, <a href="/search/physics?searchtype=author&query=Buetikofer%2C+L">L. Buetikofer</a>, <a href="/search/physics?searchtype=author&query=Cardoso%2C+J+M+R">J. M. R. Cardoso</a>, <a href="/search/physics?searchtype=author&query=Coderre%2C+D">D. Coderre</a>, <a href="/search/physics?searchtype=author&query=Colijn%2C+A+P">A. P. Colijn</a>, <a href="/search/physics?searchtype=author&query=Contreras%2C+H">H. Contreras</a>, <a href="/search/physics?searchtype=author&query=Cussonneau%2C+J+P">J. P. Cussonneau</a>, <a href="/search/physics?searchtype=author&query=Decowksi%2C+M+P">M. P. Decowksi</a> , et al. (73 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1503.07698v1-abstract-short" style="display: inline;"> The low-background, VUV-sensitive 3-inch diameter photomultiplier tube R11410 has been developed by Hamamatsu for dark matter direct detection experiments using liquid xenon as the target material. We present the results from the joint effort between the XENON collaboration and the Hamamatsu company to produce a highly radio-pure photosensor (version R11410-21) for the XENON1T dark matter experime… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1503.07698v1-abstract-full').style.display = 'inline'; document.getElementById('1503.07698v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1503.07698v1-abstract-full" style="display: none;"> The low-background, VUV-sensitive 3-inch diameter photomultiplier tube R11410 has been developed by Hamamatsu for dark matter direct detection experiments using liquid xenon as the target material. We present the results from the joint effort between the XENON collaboration and the Hamamatsu company to produce a highly radio-pure photosensor (version R11410-21) for the XENON1T dark matter experiment. After introducing the photosensor and its components, we show the methods and results of the radioactive contamination measurements of the individual materials employed in the photomultiplier production. We then discuss the adopted strategies to reduce the radioactivity of the various PMT versions. Finally, we detail the results from screening 216 tubes with ultra-low background germanium detectors, as well as their implications for the expected electronic and nuclear recoil background of the XENON1T experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1503.07698v1-abstract-full').style.display = 'none'; document.getElementById('1503.07698v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 March, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 5 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1406.3929">arXiv:1406.3929</a> <span> [<a href="https://arxiv.org/pdf/1406.3929">pdf</a>, <a href="https://arxiv.org/ps/1406.3929">ps</a>, <a href="https://arxiv.org/format/1406.3929">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/9/07/P07023">10.1088/1748-0221/9/07/P07023 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A method to suppress dielectric breakdowns in liquid argon ionization detectors for cathode to ground distances of several millimeters </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Ereditato%2C+A">A. Ereditato</a>, <a href="/search/physics?searchtype=author&query=Goeldi%2C+D">D. Goeldi</a>, <a href="/search/physics?searchtype=author&query=Janos%2C+S">S. Janos</a>, <a href="/search/physics?searchtype=author&query=Kreslo%2C+I">I. Kreslo</a>, <a href="/search/physics?searchtype=author&query=Luethi%2C+M">M. Luethi</a>, <a href="/search/physics?searchtype=author&query=von+Rohr%2C+C+R">C. Rudolf von Rohr</a>, <a href="/search/physics?searchtype=author&query=Strauss%2C+T">T. Strauss</a>, <a href="/search/physics?searchtype=author&query=Tolba%2C+T">T. Tolba</a>, <a href="/search/physics?searchtype=author&query=Weber%2C+M+S">M. S. Weber</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1406.3929v1-abstract-short" style="display: inline;"> We present a method to reach electric field intensity as high as 400 kV/cm in liquid argon for cathode-ground distances of several millimeters. This can be achieved by suppressing field emission from the cathode, overcoming limitations that we reported earlier. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1406.3929v1-abstract-full" style="display: none;"> We present a method to reach electric field intensity as high as 400 kV/cm in liquid argon for cathode-ground distances of several millimeters. This can be achieved by suppressing field emission from the cathode, overcoming limitations that we reported earlier. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1406.3929v1-abstract-full').style.display = 'none'; document.getElementById('1406.3929v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 June, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2014. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1406.2374">arXiv:1406.2374</a> <span> [<a href="https://arxiv.org/pdf/1406.2374">pdf</a>, <a href="https://arxiv.org/format/1406.2374">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/9/11/P11006">10.1088/1748-0221/9/11/P11006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Conceptual design and simulation of a water Cherenkov muon veto for the XENON1T experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Aprile%2C+E">E. Aprile</a>, <a href="/search/physics?searchtype=author&query=Agostini%2C+F">F. Agostini</a>, <a href="/search/physics?searchtype=author&query=Alfonsi%2C+M">M. Alfonsi</a>, <a href="/search/physics?searchtype=author&query=Arisaka%2C+K">K. Arisaka</a>, <a href="/search/physics?searchtype=author&query=Arneodo%2C+F">F. Arneodo</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Balan%2C+C">C. Balan</a>, <a href="/search/physics?searchtype=author&query=Barrow%2C+P">P. Barrow</a>, <a href="/search/physics?searchtype=author&query=Baudis%2C+L">L. Baudis</a>, <a href="/search/physics?searchtype=author&query=Bauermeister%2C+B">B. Bauermeister</a>, <a href="/search/physics?searchtype=author&query=Behrens%2C+A">A. Behrens</a>, <a href="/search/physics?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/physics?searchtype=author&query=Bokeloh%2C+K">K. Bokeloh</a>, <a href="/search/physics?searchtype=author&query=Breskin%2C+A">A. Breskin</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+E">E. Brown</a>, <a href="/search/physics?searchtype=author&query=Bruenner%2C+S">S. Bruenner</a>, <a href="/search/physics?searchtype=author&query=Bruno%2C+G">G. Bruno</a>, <a href="/search/physics?searchtype=author&query=Budnik%2C+R">R. Budnik</a>, <a href="/search/physics?searchtype=author&query=Cardoso%2C+J+M+R">J. M. R. Cardoso</a>, <a href="/search/physics?searchtype=author&query=Colijn%2C+A+P">A. P. Colijn</a>, <a href="/search/physics?searchtype=author&query=Contreras%2C+H">H. Contreras</a>, <a href="/search/physics?searchtype=author&query=Cussonneau%2C+J+P">J. P. Cussonneau</a>, <a href="/search/physics?searchtype=author&query=Decowski%2C+M+P">M. P. Decowski</a>, <a href="/search/physics?searchtype=author&query=Duchovni%2C+E">E. Duchovni</a> , et al. (66 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1406.2374v2-abstract-short" style="display: inline;"> XENON is a dark matter direct detection project, consisting of a time projection chamber (TPC) filled with liquid xenon as detection medium. The construction of the next generation detector, XENON1T, is presently taking place at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy. It aims at a sensitivity to spin-independent cross sections of $2 \cdot 10^{-47} ~ \mathrm{cm}^{\mathrm{2}}$ for W… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1406.2374v2-abstract-full').style.display = 'inline'; document.getElementById('1406.2374v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1406.2374v2-abstract-full" style="display: none;"> XENON is a dark matter direct detection project, consisting of a time projection chamber (TPC) filled with liquid xenon as detection medium. The construction of the next generation detector, XENON1T, is presently taking place at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy. It aims at a sensitivity to spin-independent cross sections of $2 \cdot 10^{-47} ~ \mathrm{cm}^{\mathrm{2}}$ for WIMP masses around 50 GeV/c$^{2}$, which requires a background reduction by two orders of magnitude compared to XENON100, the current generation detector. An active system that is able to tag muons and muon-induced backgrounds is critical for this goal. A water Cherenkov detector of $\sim$10 m height and diameter has been therefore developed, equipped with 8 inch photomultipliers and cladded by a reflective foil. We present the design and optimization study for this detector, which has been carried out with a series of Monte Carlo simulations. The muon veto will reach very high detection efficiencies for muons ($>99.5%$) and showers of secondary particles from muon interactions in the rock ($>70%$). Similar efficiencies will be obtained for XENONnT, the upgrade of XENON1T, which will later improve the WIMP sensitivity by another order of magnitude. With the Cherenkov water shield studied here, the background from muon-induced neutrons in XENON1T is negligible. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1406.2374v2-abstract-full').style.display = 'none'; document.getElementById('1406.2374v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 February, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 June, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 9, P11006 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1311.4511">arXiv:1311.4511</a> <span> [<a href="https://arxiv.org/pdf/1311.4511">pdf</a>, <a href="https://arxiv.org/format/1311.4511">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/9/01/P01005">10.1088/1748-0221/9/01/P01005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A light readout system for gas TPCs </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Giroux%2C+G">G. Giroux</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Franco%2C+D">D. Franco</a>, <a href="/search/physics?searchtype=author&query=Weber%2C+M">M. Weber</a>, <a href="/search/physics?searchtype=author&query=Delaquis%2C+S">S. Delaquis</a>, <a href="/search/physics?searchtype=author&query=Gornea%2C+R">R. Gornea</a>, <a href="/search/physics?searchtype=author&query=Lutz%2C+P">P. Lutz</a>, <a href="/search/physics?searchtype=author&query=Vuilleumier%2C+J+-">J. -L. Vuilleumier</a>, <a href="/search/physics?searchtype=author&query=Vuilleumier%2C+J+-">J. -M. Vuilleumier</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1311.4511v2-abstract-short" style="display: inline;"> A novel light detection scheme has been tested for use in medium-pressure gas TPCs, in view of rare events searches in low energy particle physics. It has the advantage of minimal interference with the ionization collection system, used for track imaging. It provides an absolute time reference, which allows an absolute determination of the Z coordinate of events, along the direction of the drift f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.4511v2-abstract-full').style.display = 'inline'; document.getElementById('1311.4511v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1311.4511v2-abstract-full" style="display: none;"> A novel light detection scheme has been tested for use in medium-pressure gas TPCs, in view of rare events searches in low energy particle physics. It has the advantage of minimal interference with the ionization collection system, used for track imaging. It provides an absolute time reference, which allows an absolute determination of the Z coordinate of events, along the direction of the drift field. This makes possible a fiducial cut along the Z-axis, allowing to reduce the background from the ends of the drift volume. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.4511v2-abstract-full').style.display = 'none'; document.getElementById('1311.4511v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 December, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 November, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 6 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1310.5177">arXiv:1310.5177</a> <span> [<a href="https://arxiv.org/pdf/1310.5177">pdf</a>, <a href="https://arxiv.org/format/1310.5177">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Astrophysics of Galaxies">astro-ph.GA</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applications">stat.AP</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1093/mnras/stt2026">10.1093/mnras/stt2026 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The SWELLS Survey. VI. hierarchical inference of the initial mass functions of bulges and discs </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Brewer%2C+B+J">Brendon J. Brewer</a>, <a href="/search/physics?searchtype=author&query=Marshall%2C+P+J">Philip J. Marshall</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M+W">Matthew W. Auger</a>, <a href="/search/physics?searchtype=author&query=Treu%2C+T">Tommaso Treu</a>, <a href="/search/physics?searchtype=author&query=Dutton%2C+A+A">Aaron A. Dutton</a>, <a href="/search/physics?searchtype=author&query=Barnab%C3%A8%2C+M">Matteo Barnab猫</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1310.5177v1-abstract-short" style="display: inline;"> The long-standing assumption that the stellar initial mass function (IMF) is universal has recently been challenged by a number of observations. Several studies have shown that a "heavy" IMF (e.g., with a Salpeter-like abundance of low mass stars and thus normalisation) is preferred for massive early-type galaxies, while this IMF is inconsistent with the properties of less massive, later-type gala… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.5177v1-abstract-full').style.display = 'inline'; document.getElementById('1310.5177v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1310.5177v1-abstract-full" style="display: none;"> The long-standing assumption that the stellar initial mass function (IMF) is universal has recently been challenged by a number of observations. Several studies have shown that a "heavy" IMF (e.g., with a Salpeter-like abundance of low mass stars and thus normalisation) is preferred for massive early-type galaxies, while this IMF is inconsistent with the properties of less massive, later-type galaxies. These discoveries motivate the hypothesis that the IMF may vary (possibly very slightly) across galaxies and across components of individual galaxies (e.g. bulges vs discs). In this paper we use a sample of 19 late-type strong gravitational lenses from the SWELLS survey to investigate the IMFs of the bulges and discs in late-type galaxies. We perform a joint analysis of the galaxies' total masses (constrained by strong gravitational lensing) and stellar masses (constrained by optical and near-infrared colours in the context of a stellar population synthesis [SPS] model, up to an IMF normalisation parameter). Using minimal assumptions apart from the physical constraint that the total stellar mass within any aperture must be less than the total mass within the aperture, we find that the bulges of the galaxies cannot have IMFs heavier (i.e. implying high mass per unit luminosity) than Salpeter, while the disc IMFs are not well constrained by this data set. We also discuss the necessity for hierarchical modelling when combining incomplete information about multiple astronomical objects. This modelling approach allows us to place upper limits on the size of any departures from universality. More data, including spatially resolved kinematics (as in paper V) and stellar population diagnostics over a range of bulge and disc masses, are needed to robustly quantify how the IMF varies within galaxies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.5177v1-abstract-full').style.display = 'none'; document.getElementById('1310.5177v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Accepted for publication in MNRAS. 15 pages, 8 figures. Code available at https://github.com/eggplantbren/SWELLS_Hierarchical</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1306.6106">arXiv:1306.6106</a> <span> [<a href="https://arxiv.org/pdf/1306.6106">pdf</a>, <a href="https://arxiv.org/format/1306.6106">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.89.015502">10.1103/PhysRevC.89.015502 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> An improved measurement of the 2谓尾尾 half-life of Xe-136 with EXO-200 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Albert%2C+J+B">J. B. Albert</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Auty%2C+D+J">D. J. Auty</a>, <a href="/search/physics?searchtype=author&query=Barbeau%2C+P+S">P. S. Barbeau</a>, <a href="/search/physics?searchtype=author&query=Beauchamp%2C+E">E. Beauchamp</a>, <a href="/search/physics?searchtype=author&query=Beck%2C+D">D. Beck</a>, <a href="/search/physics?searchtype=author&query=Belov%2C+V">V. Belov</a>, <a href="/search/physics?searchtype=author&query=Benitez-Medina%2C+C">C. Benitez-Medina</a>, <a href="/search/physics?searchtype=author&query=Bonatt%2C+J">J. Bonatt</a>, <a href="/search/physics?searchtype=author&query=Breidenbach%2C+M">M. Breidenbach</a>, <a href="/search/physics?searchtype=author&query=Brunner%2C+T">T. Brunner</a>, <a href="/search/physics?searchtype=author&query=Burenkov%2C+A">A. Burenkov</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Chambers%2C+C">C. Chambers</a>, <a href="/search/physics?searchtype=author&query=Chaves%2C+J">J. Chaves</a>, <a href="/search/physics?searchtype=author&query=Cleveland%2C+B">B. Cleveland</a>, <a href="/search/physics?searchtype=author&query=Cook%2C+S">S. Cook</a>, <a href="/search/physics?searchtype=author&query=Daniels%2C+T">T. Daniels</a>, <a href="/search/physics?searchtype=author&query=Danilov%2C+M">M. Danilov</a>, <a href="/search/physics?searchtype=author&query=Daugherty%2C+S+J">S. J. Daugherty</a>, <a href="/search/physics?searchtype=author&query=Davis%2C+C+G">C. G. Davis</a>, <a href="/search/physics?searchtype=author&query=Davis%2C+J">J. Davis</a>, <a href="/search/physics?searchtype=author&query=Delaquis%2C+S">S. Delaquis</a>, <a href="/search/physics?searchtype=author&query=DeVoe%2C+R">R. DeVoe</a>, <a href="/search/physics?searchtype=author&query=Dobi%2C+A">A. Dobi</a> , et al. (72 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1306.6106v4-abstract-short" style="display: inline;"> We report on an improved measurement of the 2谓尾尾 half-life of Xe-136 performed by EXO-200. The use of a large and homogeneous time projection chamber allows for the precise estimate of the fiducial mass used for the measurement, resulting in a small systematic uncertainty. We also discuss in detail the data analysis methods used for double-beta decay searches with EXO-200, while emphasizing those… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.6106v4-abstract-full').style.display = 'inline'; document.getElementById('1306.6106v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1306.6106v4-abstract-full" style="display: none;"> We report on an improved measurement of the 2谓尾尾 half-life of Xe-136 performed by EXO-200. The use of a large and homogeneous time projection chamber allows for the precise estimate of the fiducial mass used for the measurement, resulting in a small systematic uncertainty. We also discuss in detail the data analysis methods used for double-beta decay searches with EXO-200, while emphasizing those directly related to the present measurement. The Xe-136 2谓尾尾 half-life is found to be 2.165 +- 0.016 (stat) +- 0.059 (sys) x 10^21 years. This is the most precisely measured half-life of any 2谓尾尾 decay to date. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.6106v4-abstract-full').style.display = 'none'; document.getElementById('1306.6106v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 January, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 June, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">34 pages, 32 figures, Updated to published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 89, 015502 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1202.2192">arXiv:1202.2192</a> <span> [<a href="https://arxiv.org/pdf/1202.2192">pdf</a>, <a href="https://arxiv.org/format/1202.2192">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/7/05/P05010">10.1088/1748-0221/7/05/P05010 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The EXO-200 detector, part I: Detector design and construction </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Auty%2C+D+J">D. J. Auty</a>, <a href="/search/physics?searchtype=author&query=Barbeau%2C+P+S">P. S. Barbeau</a>, <a href="/search/physics?searchtype=author&query=Bartoszek%2C+L">L. Bartoszek</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">E. Baussan</a>, <a href="/search/physics?searchtype=author&query=Beauchamp%2C+E">E. Beauchamp</a>, <a href="/search/physics?searchtype=author&query=Benitez-Medina%2C+C">C. Benitez-Medina</a>, <a href="/search/physics?searchtype=author&query=Breidenbach%2C+M">M. Breidenbach</a>, <a href="/search/physics?searchtype=author&query=Chauhan%2C+D">D. Chauhan</a>, <a href="/search/physics?searchtype=author&query=Cleveland%2C+B">B. Cleveland</a>, <a href="/search/physics?searchtype=author&query=Conley%2C+R">R. Conley</a>, <a href="/search/physics?searchtype=author&query=Cook%2C+J">J. Cook</a>, <a href="/search/physics?searchtype=author&query=Cook%2C+S">S. Cook</a>, <a href="/search/physics?searchtype=author&query=Coppens%2C+A">A. Coppens</a>, <a href="/search/physics?searchtype=author&query=Craddock%2C+W">W. Craddock</a>, <a href="/search/physics?searchtype=author&query=Daniels%2C+T">T. Daniels</a>, <a href="/search/physics?searchtype=author&query=Davis%2C+C+G">C. G. Davis</a>, <a href="/search/physics?searchtype=author&query=Davis%2C+J">J. Davis</a>, <a href="/search/physics?searchtype=author&query=deVoe%2C+R">R. deVoe</a>, <a href="/search/physics?searchtype=author&query=Dobi%2C+A">A. Dobi</a>, <a href="/search/physics?searchtype=author&query=Dolinski%2C+M+J">M. J. Dolinski</a>, <a href="/search/physics?searchtype=author&query=Dunford%2C+M">M. Dunford</a>, <a href="/search/physics?searchtype=author&query=Fairbank%2C+W">W. Fairbank Jr</a>, <a href="/search/physics?searchtype=author&query=Farine%2C+J">J. Farine</a>, <a href="/search/physics?searchtype=author&query=Fierlinger%2C+P">P. Fierlinger</a> , et al. (56 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1202.2192v2-abstract-short" style="display: inline;"> EXO-200 is an experiment designed to search for double beta decay of $^{136}$Xe with a single-phase, liquid xenon detector. It uses an active mass of 110 kg of xenon enriched to 80.6% in the isotope 136 in an ultra-low background time projection chamber capable of simultaneous detection of ionization and scintillation. This paper describes the EXO-200 detector with particular attention to the most… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1202.2192v2-abstract-full').style.display = 'inline'; document.getElementById('1202.2192v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1202.2192v2-abstract-full" style="display: none;"> EXO-200 is an experiment designed to search for double beta decay of $^{136}$Xe with a single-phase, liquid xenon detector. It uses an active mass of 110 kg of xenon enriched to 80.6% in the isotope 136 in an ultra-low background time projection chamber capable of simultaneous detection of ionization and scintillation. This paper describes the EXO-200 detector with particular attention to the most innovative aspects of the design that revolve around the reduction of backgrounds, the efficient use of the expensive isotopically enriched xenon, and the optimization of the energy resolution in a relatively large volume. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1202.2192v2-abstract-full').style.display = 'none'; document.getElementById('1202.2192v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 May, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 February, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 7 (2012) P05010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1109.1046">arXiv:1109.1046</a> <span> [<a href="https://arxiv.org/pdf/1109.1046">pdf</a>, <a href="https://arxiv.org/ps/1109.1046">ps</a>, <a href="https://arxiv.org/format/1109.1046">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2012.01.066">10.1016/j.nima.2012.01.066 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Xenon purity analysis for EXO-200 via mass spectrometry </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Dobi%2C+A">A. Dobi</a>, <a href="/search/physics?searchtype=author&query=Hall%2C+C">C. Hall</a>, <a href="/search/physics?searchtype=author&query=Slutsky%2C+S">S. Slutsky</a>, <a href="/search/physics?searchtype=author&query=Yen%2C+Y+-">Y. -R. Yen</a>, <a href="/search/physics?searchtype=author&query=Aharmin%2C+B">B. Aharmin</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Barbeau%2C+P+S">P. S. Barbeau</a>, <a href="/search/physics?searchtype=author&query=Benitez-Medina%2C+C">C. Benitez-Medina</a>, <a href="/search/physics?searchtype=author&query=Breidenbach%2C+M">M. Breidenbach</a>, <a href="/search/physics?searchtype=author&query=Cleveland%2C+B">B. Cleveland</a>, <a href="/search/physics?searchtype=author&query=Conley%2C+R">R. Conley</a>, <a href="/search/physics?searchtype=author&query=Cook%2C+J">J. Cook</a>, <a href="/search/physics?searchtype=author&query=Cook%2C+S">S. Cook</a>, <a href="/search/physics?searchtype=author&query=Counts%2C+I">I. Counts</a>, <a href="/search/physics?searchtype=author&query=Craddock%2C+W">W. Craddock</a>, <a href="/search/physics?searchtype=author&query=Daniels%2C+T">T. Daniels</a>, <a href="/search/physics?searchtype=author&query=Davis%2C+C+G">C. G. Davis</a>, <a href="/search/physics?searchtype=author&query=Davis%2C+J">J. Davis</a>, <a href="/search/physics?searchtype=author&query=deVoe%2C+R">R. deVoe</a>, <a href="/search/physics?searchtype=author&query=Dixit%2C+M">M. Dixit</a>, <a href="/search/physics?searchtype=author&query=Dolinski%2C+M+J">M. J. Dolinski</a>, <a href="/search/physics?searchtype=author&query=Donato%2C+K">K. Donato</a>, <a href="/search/physics?searchtype=author&query=Fairbank%2C+W">W. Fairbank Jr.</a>, <a href="/search/physics?searchtype=author&query=Farine%2C+J">J. Farine</a>, <a href="/search/physics?searchtype=author&query=Fierlinger%2C+P">P. Fierlinger</a> , et al. (51 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1109.1046v1-abstract-short" style="display: inline;"> We describe purity measurements of the natural and enriched xenon stockpiles used by the EXO-200 double beta decay experiment based on a mass spectrometry technique. The sensitivity of the spectrometer is enhanced by several orders of magnitude by the presence of a liquid nitrogen cold trap, and many impurity species of interest can be detected at the level of one part-per-billion or better. We ha… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1109.1046v1-abstract-full').style.display = 'inline'; document.getElementById('1109.1046v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1109.1046v1-abstract-full" style="display: none;"> We describe purity measurements of the natural and enriched xenon stockpiles used by the EXO-200 double beta decay experiment based on a mass spectrometry technique. The sensitivity of the spectrometer is enhanced by several orders of magnitude by the presence of a liquid nitrogen cold trap, and many impurity species of interest can be detected at the level of one part-per-billion or better. We have used the technique to screen the EXO-200 xenon before, during, and after its use in our detector, and these measurements have proven useful. This is the first application of the cold trap mass spectrometry technique to an operating physics experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1109.1046v1-abstract-full').style.display = 'none'; document.getElementById('1109.1046v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 September, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">19 pages, 6 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1108.4193">arXiv:1108.4193</a> <span> [<a href="https://arxiv.org/pdf/1108.4193">pdf</a>, <a href="https://arxiv.org/ps/1108.4193">ps</a>, <a href="https://arxiv.org/format/1108.4193">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.107.212501">10.1103/PhysRevLett.107.212501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of Two-Neutrino Double-Beta Decay in Xe-136 with EXO-200 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ackerman%2C+N">N. Ackerman</a>, <a href="/search/physics?searchtype=author&query=Aharmim%2C+B">B. Aharmim</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Auty%2C+D+J">D. J. Auty</a>, <a href="/search/physics?searchtype=author&query=Barbeau%2C+P+S">P. S. Barbeau</a>, <a href="/search/physics?searchtype=author&query=Barry%2C+K">K. Barry</a>, <a href="/search/physics?searchtype=author&query=Bartoszek%2C+L">L. Bartoszek</a>, <a href="/search/physics?searchtype=author&query=Beauchamp%2C+E">E. Beauchamp</a>, <a href="/search/physics?searchtype=author&query=Belov%2C+V">V. Belov</a>, <a href="/search/physics?searchtype=author&query=Benitez-Medina%2C+C">C. Benitez-Medina</a>, <a href="/search/physics?searchtype=author&query=Breidenbach%2C+M">M. Breidenbach</a>, <a href="/search/physics?searchtype=author&query=Burenkov%2C+A">A. Burenkov</a>, <a href="/search/physics?searchtype=author&query=Cleveland%2C+B">B. Cleveland</a>, <a href="/search/physics?searchtype=author&query=Conley%2C+R">R. Conley</a>, <a href="/search/physics?searchtype=author&query=Conti%2C+E">E. Conti</a>, <a href="/search/physics?searchtype=author&query=Cook%2C+J">J. Cook</a>, <a href="/search/physics?searchtype=author&query=Cook%2C+S">S. Cook</a>, <a href="/search/physics?searchtype=author&query=Coppens%2C+A">A. Coppens</a>, <a href="/search/physics?searchtype=author&query=Counts%2C+I">I. Counts</a>, <a href="/search/physics?searchtype=author&query=Craddock%2C+W">W. Craddock</a>, <a href="/search/physics?searchtype=author&query=Daniels%2C+T">T. Daniels</a>, <a href="/search/physics?searchtype=author&query=Danilov%2C+M+V">M. V. Danilov</a>, <a href="/search/physics?searchtype=author&query=Davis%2C+C+G">C. G. Davis</a>, <a href="/search/physics?searchtype=author&query=Davis%2C+J">J. Davis</a>, <a href="/search/physics?searchtype=author&query=deVoe%2C+R">R. deVoe</a> , et al. (78 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1108.4193v2-abstract-short" style="display: inline;"> We report the observation of two-neutrino double-beta decay in Xe-136 with T_1/2 = 2.11 +- 0.04 (stat.) +- 0.21 (sys.) x 10^21 yr. This second order process, predicted by the Standard Model, has been observed for several nuclei but not for Xe-136. The observed decay rate provides new input to matrix element calculations and to the search for the more interesting neutrino-less double-beta decay, th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1108.4193v2-abstract-full').style.display = 'inline'; document.getElementById('1108.4193v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1108.4193v2-abstract-full" style="display: none;"> We report the observation of two-neutrino double-beta decay in Xe-136 with T_1/2 = 2.11 +- 0.04 (stat.) +- 0.21 (sys.) x 10^21 yr. This second order process, predicted by the Standard Model, has been observed for several nuclei but not for Xe-136. The observed decay rate provides new input to matrix element calculations and to the search for the more interesting neutrino-less double-beta decay, the most sensitive probe for the existence of Majorana particles and the measurement of the neutrino mass scale. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1108.4193v2-abstract-full').style.display = 'none'; document.getElementById('1108.4193v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 November, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 August, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2011. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1106.1812">arXiv:1106.1812</a> <span> [<a href="https://arxiv.org/pdf/1106.1812">pdf</a>, <a href="https://arxiv.org/ps/1106.1812">ps</a>, <a href="https://arxiv.org/format/1106.1812">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2011.09.017">10.1016/j.nima.2011.09.017 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A xenon gas purity monitor for EXO </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=EXO+Collaboration"> EXO Collaboration</a>, <a href="/search/physics?searchtype=author&query=Dobi%2C+A">A. Dobi</a>, <a href="/search/physics?searchtype=author&query=Hall%2C+C">C. Hall</a>, <a href="/search/physics?searchtype=author&query=Herrin%2C+S">S. Herrin</a>, <a href="/search/physics?searchtype=author&query=Odian%2C+A">A. Odian</a>, <a href="/search/physics?searchtype=author&query=Prescott%2C+C+Y">C. Y. Prescott</a>, <a href="/search/physics?searchtype=author&query=Rowson%2C+P+C">P. C. Rowson</a>, <a href="/search/physics?searchtype=author&query=Ackerman%2C+N">N. Ackerman</a>, <a href="/search/physics?searchtype=author&query=Aharmin%2C+B">B. Aharmin</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Barbeau%2C+P+S">P. S. Barbeau</a>, <a href="/search/physics?searchtype=author&query=Barry%2C+K">K. Barry</a>, <a href="/search/physics?searchtype=author&query=Benitez-Medina%2C+C">C. Benitez-Medina</a>, <a href="/search/physics?searchtype=author&query=Breidenbach%2C+M">M. Breidenbach</a>, <a href="/search/physics?searchtype=author&query=Cook%2C+S">S. Cook</a>, <a href="/search/physics?searchtype=author&query=Counts%2C+I">I. Counts</a>, <a href="/search/physics?searchtype=author&query=Daniels%2C+T">T. Daniels</a>, <a href="/search/physics?searchtype=author&query=DeVoe%2C+R">R. DeVoe</a>, <a href="/search/physics?searchtype=author&query=Dolinski%2C+M+J">M. J. Dolinski</a>, <a href="/search/physics?searchtype=author&query=Donato%2C+K">K. Donato</a>, <a href="/search/physics?searchtype=author&query=Fairbank%2C+W">W. Fairbank Jr.</a>, <a href="/search/physics?searchtype=author&query=Farine%2C+J">J. Farine</a>, <a href="/search/physics?searchtype=author&query=Giroux%2C+G">G. Giroux</a>, <a href="/search/physics?searchtype=author&query=Gornea%2C+R">R. Gornea</a>, <a href="/search/physics?searchtype=author&query=Graham%2C+K">K. Graham</a> , et al. (35 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1106.1812v1-abstract-short" style="display: inline;"> We discuss the design, operation, and calibration of two versions of a xenon gas purity monitor (GPM) developed for the EXO double beta decay program. The devices are sensitive to concentrations of oxygen well below 1 ppb at an ambient gas pressure of one atmosphere or more. The theory of operation of the GPM is discussed along with the interactions of oxygen and other impurities with the GPM's tu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1106.1812v1-abstract-full').style.display = 'inline'; document.getElementById('1106.1812v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1106.1812v1-abstract-full" style="display: none;"> We discuss the design, operation, and calibration of two versions of a xenon gas purity monitor (GPM) developed for the EXO double beta decay program. The devices are sensitive to concentrations of oxygen well below 1 ppb at an ambient gas pressure of one atmosphere or more. The theory of operation of the GPM is discussed along with the interactions of oxygen and other impurities with the GPM's tungsten filament. Lab tests and experiences in commissioning the EXO-200 double beta decay experiment are described. These devices can also be used on other noble gases. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1106.1812v1-abstract-full').style.display = 'none'; document.getElementById('1106.1812v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 June, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">41 pages, 26 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1104.5041">arXiv:1104.5041</a> <span> [<a href="https://arxiv.org/pdf/1104.5041">pdf</a>, <a href="https://arxiv.org/ps/1104.5041">ps</a>, <a href="https://arxiv.org/format/1104.5041">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1063/1.3653391">10.1063/1.3653391 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A magnetically-driven piston pump for ultra-clean applications </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=LePort%2C+F">F. LePort</a>, <a href="/search/physics?searchtype=author&query=Neilson%2C+R">R. Neilson</a>, <a href="/search/physics?searchtype=author&query=Barbeau%2C+P+S">P. S. Barbeau</a>, <a href="/search/physics?searchtype=author&query=Barry%2C+K">K. Barry</a>, <a href="/search/physics?searchtype=author&query=Bartoszek%2C+L">L. Bartoszek</a>, <a href="/search/physics?searchtype=author&query=Counts%2C+I">I. Counts</a>, <a href="/search/physics?searchtype=author&query=Davis%2C+J">J. Davis</a>, <a href="/search/physics?searchtype=author&query=deVoe%2C+R">R. deVoe</a>, <a href="/search/physics?searchtype=author&query=Dolinski%2C+M+J">M. J. Dolinski</a>, <a href="/search/physics?searchtype=author&query=Gratta%2C+G">G. Gratta</a>, <a href="/search/physics?searchtype=author&query=Green%2C+M">M. Green</a>, <a href="/search/physics?searchtype=author&query=D%C3%ADez%2C+M+M">M. Montero D铆ez</a>, <a href="/search/physics?searchtype=author&query=M%C3%BCller%2C+A+R">A. R. M眉ller</a>, <a href="/search/physics?searchtype=author&query=O%27Sullivan%2C+K">K. O'Sullivan</a>, <a href="/search/physics?searchtype=author&query=Rivas%2C+A">A. Rivas</a>, <a href="/search/physics?searchtype=author&query=Twelker%2C+K">K. Twelker</a>, <a href="/search/physics?searchtype=author&query=Aharmim%2C+B">B. Aharmim</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Belov%2C+V">V. Belov</a>, <a href="/search/physics?searchtype=author&query=Benitez-Medina%2C+C">C. Benitez-Medina</a>, <a href="/search/physics?searchtype=author&query=Breidenbach%2C+M">M. Breidenbach</a>, <a href="/search/physics?searchtype=author&query=Burenkov%2C+A">A. Burenkov</a>, <a href="/search/physics?searchtype=author&query=Cleveland%2C+B">B. Cleveland</a>, <a href="/search/physics?searchtype=author&query=Conley%2C+R">R. Conley</a>, <a href="/search/physics?searchtype=author&query=Cook%2C+J">J. Cook</a> , et al. (55 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1104.5041v1-abstract-short" style="display: inline;"> A magnetically driven piston pump for xenon gas recirculation is presented. The pump is designed to satisfy extreme purity and containment requirements, as is appropriate for the recirculation of isotopically enriched xenon through the purification system and large liquid xenon TPC of EXO-200. The pump, using sprung polymer gaskets, is capable of pumping more than 16 standard liters per minute (SL… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1104.5041v1-abstract-full').style.display = 'inline'; document.getElementById('1104.5041v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1104.5041v1-abstract-full" style="display: none;"> A magnetically driven piston pump for xenon gas recirculation is presented. The pump is designed to satisfy extreme purity and containment requirements, as is appropriate for the recirculation of isotopically enriched xenon through the purification system and large liquid xenon TPC of EXO-200. The pump, using sprung polymer gaskets, is capable of pumping more than 16 standard liters per minute (SLPM) of xenon gas with 750 torr differential pressure. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1104.5041v1-abstract-full').style.display = 'none'; document.getElementById('1104.5041v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 April, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 5 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1011.4553">arXiv:1011.4553</a> <span> [<a href="https://arxiv.org/pdf/1011.4553">pdf</a>, <a href="https://arxiv.org/ps/1011.4553">ps</a>, <a href="https://arxiv.org/format/1011.4553">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1367-2630/13/4/043006">10.1088/1367-2630/13/4/043006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New Insights into Particle Detection with Superheated Liquids </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Archambault%2C+S">S. Archambault</a>, <a href="/search/physics?searchtype=author&query=Aubin%2C+F">F. Aubin</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Beleshi%2C+M">M. Beleshi</a>, <a href="/search/physics?searchtype=author&query=Behnke%2C+E">E. Behnke</a>, <a href="/search/physics?searchtype=author&query=Behnke%2C+J">J. Behnke</a>, <a href="/search/physics?searchtype=author&query=Beltran%2C+B">B. Beltran</a>, <a href="/search/physics?searchtype=author&query=Clark%2C+K">K. Clark</a>, <a href="/search/physics?searchtype=author&query=Dai%2C+X">X. Dai</a>, <a href="/search/physics?searchtype=author&query=Davour%2C+A">A. Davour</a>, <a href="/search/physics?searchtype=author&query=Farine%2C+F+D+J">F. Debris. J. Farine</a>, <a href="/search/physics?searchtype=author&query=Genest%2C+M+-">M. -H. Genest</a>, <a href="/search/physics?searchtype=author&query=Giroux%2C+G">G. Giroux</a>, <a href="/search/physics?searchtype=author&query=Gornea%2C+R">R. Gornea</a>, <a href="/search/physics?searchtype=author&query=Faust%2C+R">R. Faust</a>, <a href="/search/physics?searchtype=author&query=Hinnefeld%2C+H">H. Hinnefeld</a>, <a href="/search/physics?searchtype=author&query=Kamaha%2C+A">A. Kamaha</a>, <a href="/search/physics?searchtype=author&query=Krauss%2C+C+B">C. B. Krauss</a>, <a href="/search/physics?searchtype=author&query=Lafreni%C3%A8re%2C+M">M. Lafreni猫re</a>, <a href="/search/physics?searchtype=author&query=Laurin%2C+M">M. Laurin</a>, <a href="/search/physics?searchtype=author&query=Lawson%2C+I">I. Lawson</a>, <a href="/search/physics?searchtype=author&query=Leroy%2C+C">C. Leroy</a>, <a href="/search/physics?searchtype=author&query=L%C3%A9vy%2C+C">C. L茅vy</a>, <a href="/search/physics?searchtype=author&query=Lessard%2C+L">L. Lessard</a>, <a href="/search/physics?searchtype=author&query=Levine%2C+I">I. Levine</a> , et al. (12 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1011.4553v1-abstract-short" style="display: inline;"> We report new results obtained in calibrations of superheated liquid droplet detectors used in dark matter searches with different radiation sources (n,$伪$,$纬$). In particular, detectors were spiked with alpha-emitters located inside and outside the droplets. It is shown that the responses are different, depending on whether alpha particles or recoil nuclei create the signals. The energy threshold… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1011.4553v1-abstract-full').style.display = 'inline'; document.getElementById('1011.4553v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1011.4553v1-abstract-full" style="display: none;"> We report new results obtained in calibrations of superheated liquid droplet detectors used in dark matter searches with different radiation sources (n,$伪$,$纬$). In particular, detectors were spiked with alpha-emitters located inside and outside the droplets. It is shown that the responses are different, depending on whether alpha particles or recoil nuclei create the signals. The energy thresholds for $伪$-emitters are compared with test beam measurements using mono-energetic neutrons, as well as with theoretical predictions. Finally a model is presented which describes how the observed intensities of particle induced acoustic signals can be related to the dynamics of bubble growth in superheated liquids. An improved understanding of the bubble dynamics is an important first step in obtaining better discrimination between particle types interacting in detectors of this kind. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1011.4553v1-abstract-full').style.display = 'none'; document.getElementById('1011.4553v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 November, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> New J.Phys.13:043006,2011 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1008.3422">arXiv:1008.3422</a> <span> [<a href="https://arxiv.org/pdf/1008.3422">pdf</a>, <a href="https://arxiv.org/format/1008.3422">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1063/1.3499505">10.1063/1.3499505 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A simple radionuclide-driven single-ion source </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=D%C3%ADez%2C+M+M">M. Montero D铆ez</a>, <a href="/search/physics?searchtype=author&query=Twelker%2C+K">K. Twelker</a>, <a href="/search/physics?searchtype=author&query=Fairbank%2C+W">W. Fairbank Jr.</a>, <a href="/search/physics?searchtype=author&query=Gratta%2C+G">G. Gratta</a>, <a href="/search/physics?searchtype=author&query=Barbeau%2C+P+S">P. S. Barbeau</a>, <a href="/search/physics?searchtype=author&query=Barry%2C+K">K. Barry</a>, <a href="/search/physics?searchtype=author&query=DeVoe%2C+R">R. DeVoe</a>, <a href="/search/physics?searchtype=author&query=Dolinski%2C+M+J">M. J. Dolinski</a>, <a href="/search/physics?searchtype=author&query=Green%2C+M">M. Green</a>, <a href="/search/physics?searchtype=author&query=LePort%2C+F">F. LePort</a>, <a href="/search/physics?searchtype=author&query=M%C3%BCller%2C+A+R">A. R. M眉ller</a>, <a href="/search/physics?searchtype=author&query=Neilson%2C+R">R. Neilson</a>, <a href="/search/physics?searchtype=author&query=O%27Sullivan%2C+K">K. O'Sullivan</a>, <a href="/search/physics?searchtype=author&query=Ackerman%2C+N">N. Ackerman</a>, <a href="/search/physics?searchtype=author&query=Aharmin%2C+B">B. Aharmin</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Benitez-Medina%2C+C">C. Benitez-Medina</a>, <a href="/search/physics?searchtype=author&query=Breidenbach%2C+M">M. Breidenbach</a>, <a href="/search/physics?searchtype=author&query=Burenkov%2C+A">A. Burenkov</a>, <a href="/search/physics?searchtype=author&query=Cook%2C+S">S. Cook</a>, <a href="/search/physics?searchtype=author&query=Daniels%2C+T">T. Daniels</a>, <a href="/search/physics?searchtype=author&query=Donato%2C+K">K. Donato</a>, <a href="/search/physics?searchtype=author&query=Farine%2C+J">J. Farine</a>, <a href="/search/physics?searchtype=author&query=Giroux%2C+G">G. Giroux</a>, <a href="/search/physics?searchtype=author&query=Gornea%2C+R">R. Gornea</a> , et al. (32 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1008.3422v1-abstract-short" style="display: inline;"> We describe a source capable of producing single barium ions through nuclear recoils in radioactive decay. The source is fabricated by electroplating 148Gd onto a silicon 伪-particle detector and vapor depositing a layer of BaF2 over it. 144Sm recoils from the alpha decay of 148Gd are used to dislodge Ba+ ions from the BaF2 layer and emit them in the surrounding environment. The simultaneous detect… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1008.3422v1-abstract-full').style.display = 'inline'; document.getElementById('1008.3422v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1008.3422v1-abstract-full" style="display: none;"> We describe a source capable of producing single barium ions through nuclear recoils in radioactive decay. The source is fabricated by electroplating 148Gd onto a silicon 伪-particle detector and vapor depositing a layer of BaF2 over it. 144Sm recoils from the alpha decay of 148Gd are used to dislodge Ba+ ions from the BaF2 layer and emit them in the surrounding environment. The simultaneous detection of an 伪 particle in the substrate detector allows for tagging of the nuclear decay and of the Ba+ emission. The source is simple, durable, and can be manipulated and used in different environments. We discuss the fabrication process, which can be easily adapted to emit most other chemical species, and the performance of the source. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1008.3422v1-abstract-full').style.display = 'none'; document.getElementById('1008.3422v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 August, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Rev.Sci.Instrum.81:113301,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0906.2499">arXiv:0906.2499</a> <span> [<a href="https://arxiv.org/pdf/0906.2499">pdf</a>, <a href="https://arxiv.org/format/0906.2499">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2009.06.029">10.1016/j.nima.2009.06.029 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Characterization of large area APDs for the EXO-200 detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Neilson%2C+R">R. Neilson</a>, <a href="/search/physics?searchtype=author&query=LePort%2C+F">F. LePort</a>, <a href="/search/physics?searchtype=author&query=Pocar%2C+A">A. Pocar</a>, <a href="/search/physics?searchtype=author&query=Kumar%2C+K">K. Kumar</a>, <a href="/search/physics?searchtype=author&query=Odian%2C+A">A. Odian</a>, <a href="/search/physics?searchtype=author&query=Prescott%2C+C+Y">C. Y. Prescott</a>, <a href="/search/physics?searchtype=author&query=Tenev%2C+V">V. Tenev</a>, <a href="/search/physics?searchtype=author&query=Ackerman%2C+N">N. Ackerman</a>, <a href="/search/physics?searchtype=author&query=Akimov%2C+D">D. Akimov</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Benitez-Medina%2C+C">C. Benitez-Medina</a>, <a href="/search/physics?searchtype=author&query=Breidenbach%2C+M">M. Breidenbach</a>, <a href="/search/physics?searchtype=author&query=Burenkov%2C+A">A. Burenkov</a>, <a href="/search/physics?searchtype=author&query=Conley%2C+R">R. Conley</a>, <a href="/search/physics?searchtype=author&query=Cook%2C+S">S. Cook</a>, <a href="/search/physics?searchtype=author&query=deVoe%2C+R">R. deVoe</a>, <a href="/search/physics?searchtype=author&query=Dolinski%2C+M+J">M. J. Dolinski</a>, <a href="/search/physics?searchtype=author&query=Fairbank%2C+W">W. Fairbank Jr.</a>, <a href="/search/physics?searchtype=author&query=Farine%2C+J">J. Farine</a>, <a href="/search/physics?searchtype=author&query=Fierlinger%2C+P">P. Fierlinger</a>, <a href="/search/physics?searchtype=author&query=Flatt%2C+B">B. Flatt</a>, <a href="/search/physics?searchtype=author&query=Gornea%2C+R">R. Gornea</a>, <a href="/search/physics?searchtype=author&query=Gratta%2C+G">G. Gratta</a>, <a href="/search/physics?searchtype=author&query=Green%2C+M">M. Green</a>, <a href="/search/physics?searchtype=author&query=Hall%2C+C">C. Hall</a> , et al. (27 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0906.2499v1-abstract-short" style="display: inline;"> EXO-200 uses 468 large area avalanche photodiodes (LAAPDs) for detection of scintillation light in an ultra-low-background liquid xenon (LXe) detector. We describe initial measurements of dark noise, gain and response to xenon scintillation light of LAAPDs at temperatures from room temperature to 169K - the temperature of liquid xenon. We also describe the individual characterization of more tha… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0906.2499v1-abstract-full').style.display = 'inline'; document.getElementById('0906.2499v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0906.2499v1-abstract-full" style="display: none;"> EXO-200 uses 468 large area avalanche photodiodes (LAAPDs) for detection of scintillation light in an ultra-low-background liquid xenon (LXe) detector. We describe initial measurements of dark noise, gain and response to xenon scintillation light of LAAPDs at temperatures from room temperature to 169K - the temperature of liquid xenon. We also describe the individual characterization of more than 800 LAAPDs for selective installation in the EXO-200 detector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0906.2499v1-abstract-full').style.display = 'none'; document.getElementById('0906.2499v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 June, 2009; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2009. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 17 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl.Instrum.Meth.A608:68-75,2009 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0807.1536">arXiv:0807.1536</a> <span> [<a href="https://arxiv.org/pdf/0807.1536">pdf</a>, <a href="https://arxiv.org/ps/0807.1536">ps</a>, <a href="https://arxiv.org/format/0807.1536">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1367-2630/10/10/103017">10.1088/1367-2630/10/10/103017 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Discrimination of nuclear recoils from alpha particles with superheated liquids </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Aubin%2C+F">F. Aubin</a>, <a href="/search/physics?searchtype=author&query=Auger%2C+M">M. Auger</a>, <a href="/search/physics?searchtype=author&query=Behnke%2C+E">E. Behnke</a>, <a href="/search/physics?searchtype=author&query=Beltran%2C+B">B. Beltran</a>, <a href="/search/physics?searchtype=author&query=Clark%2C+K">K. Clark</a>, <a href="/search/physics?searchtype=author&query=Dai%2C+X">X. Dai</a>, <a href="/search/physics?searchtype=author&query=Davour%2C+A">A. Davour</a>, <a href="/search/physics?searchtype=author&query=Genest%2C+M+-">M. -H. Genest</a>, <a href="/search/physics?searchtype=author&query=Giroux%2C+G">G. Giroux</a>, <a href="/search/physics?searchtype=author&query=Gornea%2C+R">R. Gornea</a>, <a href="/search/physics?searchtype=author&query=Faust%2C+R">R. Faust</a>, <a href="/search/physics?searchtype=author&query=Krauss%2C+C+B">C. B. Krauss</a>, <a href="/search/physics?searchtype=author&query=Leroy%2C+C">C. Leroy</a>, <a href="/search/physics?searchtype=author&query=Lessard%2C+L">L. Lessard</a>, <a href="/search/physics?searchtype=author&query=Levine%2C+I">I. Levine</a>, <a href="/search/physics?searchtype=author&query=Levy%2C+C">C. Levy</a>, <a href="/search/physics?searchtype=author&query=Martin%2C+J+-">J. -P. Martin</a>, <a href="/search/physics?searchtype=author&query=Morlat%2C+T">T. Morlat</a>, <a href="/search/physics?searchtype=author&query=Noble%2C+A+J">A. J. Noble</a>, <a href="/search/physics?searchtype=author&query=Nadeau%2C+P">P. Nadeau</a>, <a href="/search/physics?searchtype=author&query=Piro%2C+M+-">M. -C. Piro</a>, <a href="/search/physics?searchtype=author&query=Pospisil%2C+S">S. Pospisil</a>, <a href="/search/physics?searchtype=author&query=Shepherd%2C+T">T. Shepherd</a>, <a href="/search/physics?searchtype=author&query=Sodomka%2C+J">J. Sodomka</a>, <a href="/search/physics?searchtype=author&query=Starinski%2C+N">N. Starinski</a> , et al. (4 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0807.1536v2-abstract-short" style="display: inline;"> The PICASSO collaboration observed for the first time a significant difference between the acoustic signals induced by neutrons and alpha particles in a detector based on superheated liquids. This new discovery offers the possibility of improved background suppression and could be especially useful for dark matter experiments. This new effect may be attributed to the formation of multiple bubble… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0807.1536v2-abstract-full').style.display = 'inline'; document.getElementById('0807.1536v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0807.1536v2-abstract-full" style="display: none;"> The PICASSO collaboration observed for the first time a significant difference between the acoustic signals induced by neutrons and alpha particles in a detector based on superheated liquids. This new discovery offers the possibility of improved background suppression and could be especially useful for dark matter experiments. This new effect may be attributed to the formation of multiple bubbles on alpha tracks, compared to single nucleations created by neutron induced recoils. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0807.1536v2-abstract-full').style.display = 'none'; document.getElementById('0807.1536v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 September, 2008; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 July, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2008. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 4 figures. accepted for publication in New Journal of Physics</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> NewJ.Phys.10:103017,2008 </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 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